Objection 5: Further, as point is to point, so is line to line, surface to surface, and body to body. Now two points can be coincident, as in the case of two lines touching one another, and two lines when two surfaces are in contact with one another, and two surfaces when two bodies touch one another, because "contiguous things are those whose boundaries coincide" (Phys. vi, 6). Therefore it is not against the nature of a body to be in the same place together with another body. Now whatever excellence is competent to the nature of a body will all be bestowed on the glorified body. Therefore a glorified body, by reason of its subtlety, will be able to be in the same place together with another body.
On the contrary, Boethius says (De Trin. i): "Difference of accidents makes distinction in number. For three men differ not in genus, nor in species, but in their accidents. If we were to remove absolutely every accident from them, still each one has a different place; and it is quite conceivable that they should all occupy the same place." Therefore if we suppose two bodies to occupy the same place, there will be but one body numerically.
I answer that, It cannot be maintained that a glorified body, by reason of its subtlety, is able to be in the same place with another body, unless the obstacle to its being now in the same place with another body be removed by that subtlety. Some say that in the present state this obstacle is its grossness by virtue of which it is able to occupy a place; and that this grossness is removed by the gift of subtlety. But there are two reasons why this cannot be maintained. First, because the grossness which the gift of subtlety removes is a kind of defect, for instance an inordinateness of matter in not being perfectly subject to its form. For all that pertains to the integrity of the body will rise again in the body, both as regards the matter and as regards the form. And the fact that a body is able to fill a place belongs to it by reason of that which pertains to its integrity, and not on account of any defect of nature. For since fulness is opposed to vacancy, that alone does not fill a place, which being put in a place, nevertheless leaves a place vacant. Now a vacuum is defined by the Philosopher (Phys. iv, 6,7) as being "a place not filled by a sensible body." And a body is said to be sensible by reason of its matter, form, and natural accidents, all of which pertain to the integrity of nature. It is also plain that the glorified body will be sensible even to touch, as evidenced by the body of our Lord ( Lk. 24:39 ): nor will it lack matter, or form, or natural accidents, namely heat, cold, and so forth. Hence it is evident that the glorified body, the gift of subtlety notwithstanding, will fill a place: for it would seem madness to say that the place in which there will be a glorified body will be empty. Secondly their aforesaid argument does not avail, because to hinder the co-existence of a body in the same place is more than to fill a place. For if we suppose dimensions separate from matter, those dimensions do not fill a place. Hence some who held the possibility of a vacuum, said that a vacuum is a place wherein such like dimensions exist apart from a sensible body; and yet those dimensions hinder another body from being together with them in the same place. This is made clear by the Philosopher (Phys. iv, 1,8; Metaph. ii, 2), where he considers it impossible for a mathematical body, which is nothing but separate dimensions, to be together with another natural sensible body. Consequently, granted that the subtlety of a glorified body hindered it from filling a place, nevertheless it would not follow that for this reason it is able to be in the same place with another body, since the removal of the lesser does not involve the removal of the greater.
Accordingly we must say that the obstacle to our body's being now in the same place with another body can nowise be removed by the gift of subtlety. For nothing can prevent a body from occupying the same place together with another body, except something in it that requires a different place: since nothing is an obstacle to identity, save that which is a cause of distinction. Now this distinction of place is not required by any quality of the body, because a body demands a place, not by reason of its quality: wherefore if we remove from a body the fact of its being hot or cold, heavy or light, it still retains the necessity of the aforesaid distinction, as the Philosopher proves (Phys. iv), and as is self-evident. In like manner neither can matter cause the necessity of the aforesaid distinction, because matter does not occupy a place except through its dimensive quantity. Again neither does form occupy a place, unless it have a place through its matter. It remains therefore that the necessity for two bodies occupying each a distinct place results from the nature of dimensive quantity, to which a place is essentially befitting. For this forms part of its definition, since dimensive quantity is quantity occupying a place. Hence it is that if we remove all else in a thing from it, the necessity of this distinction is found in its dimensive quantity alone. Thus take the example of a separate line, supposing there to be two such lines, or two parts of one line, they must needs occupy distinct places, else one line added to another would not make something greater, and this is against common sense. The same applies to surfaces and mathematical bodies. And since matter demands place, through being the subject of dimension, the aforesaid necessity results in placed matter, so that just as it is impossible for there to be two lines, or two parts of a line, unless they occupy distinct places, so is it impossible for there to be two matters, or two parts of matter, without there be distinction of place. And since distinction of matter is the principle of the distinction between individuals, it follows that, as Boethius says (De Trin.), "we cannot possibly conceive two bodies occupying one place," so that this distinction of individuals requires this difference of accidents. Now subtlety does not deprive the glorified body of its dimension; wherefore it nowise removes from it the aforesaid necessity of occupying a distinct place from another body. Therefore the subtlety of a glorified body will not enable it to be in the same place together with another body, but it will be possible for it to be together with another body by the operation of the Divine power: even as the body of Peter had the power whereby the sick were healed at the passing of Peter's shadow ( Acts 5:15 ) not through any inherent property, but by the power of God for the upbuilding of the faith. Thus will the Divine power make it possible for a glorified body to be in the same place together with another body for the perfection of glory.
Reply to Objection 1: That Christ's body was able to be together with another body in the same place was not due to its subtlety, but resulted from the power of His Godhead after His resurrection, even as in His birth [*Cf. TP, Q[28], A[2], ad 3]. Hence Gregory says (Hom. xxvi in Evang.): "The same body went into His disciples the doors being shut, which to human eyes came from the closed womb of the Virgin at His birth." Therefore there is no reason why this should be befitting to glorified bodies on account of their subtlety.
Reply to Objection 2: Light is not a body as we have said above (Sent. ii, Q[13], A[3]; FP, Q[67], A[2]): hence the objection proceeds on a false supposition.
Reply to Objection 3: The glorified body will pass through the heavenly spheres without severing them, not by virtue of its subtlety, but by the Divine power, which will assist them in all things at will.
Reply to Objection 4: From the fact that God will come to the aid of the blessed at will in whatever they desire, it follows that they cannot be surrounded or imprisoned.
Reply to Objection 5: As stated in Phys. iv, 5, "a point is not in a place": hence if it be said to be in a place, this is only accidental, because the body of which it is a term is in a place. And just as the whole place corresponds to the whole body, so the term of the place corresponds to the term of the body. But it happens that two places have one term, even as two lines terminate in one point. And consequently though two bodies must needs be in distinct places, yet the same term of two places corresponds to the two terms of the two bodies. It is in this sense that the bounds of contiguous bodies are said to coincide.
Whether it is possible, by a miracle, for two bodies to be in the same place?
Objection 1: It would seem that not even by a miracle is it possible for two bodies to be in the same place. For it is not possible that, by a miracle, two bodies be at once two and one, since this would imply that contradictions are true at the same time. But if we suppose two bodies to be in the same place, it would follow that those two bodies are one. Therefore this cannot be done by a miracle. The minor is proved thus. Suppose two bodies A and B to be in the same place. The dimensions of A will either be the same as the dimensions of the place, or they will differ from them. If they differ, then some of the dimensions will be separate: which is impossible, since the dimensions that are within the bounds of a place are not in a subject unless they be in a placed body. If they be the same, then for the same reason the dimensions of B will be the same as the dimensions of the place. "Now things that are the same with one and the same thing are the same with one another." Therefore the dimensions of A and B are the same. But two bodies cannot have identical dimensions just as they cannot have the same whiteness. Therefore A and B are one body and yet they were two. Therefore they are at the same time one and two.
Objection 2: Further, a thing cannot be done miraculously either against the common principles---for instance that the part be not less than the whole; since what is contrary to common principles implies a direct contradiction---or contrary to the conclusions of geometry which are infallible deductions from common principles---for instance that the three angles of a triangle should not be equal to two right angles. In like manner nothing can be done to a line that is contrary to the definition of a line, because to sever the definition from the defined is to make two contradictories true at the same time. Now it is contrary to common principles, both to the conclusions of geometry and to the definition of a line, for two bodies to be in the same place. Therefore this cannot be done by a miracle. The minor is proved as follows: It is a conclusion of geometry that two circles touch one another only at a point. Now if two circular bodies were in the same place, the two circles described in them would touch one another as a whole. Again it is contrary to the definition of a line that there be more than one straight line between two points: yet this would be the case were two bodies in the same place, since between two given points in the various surfaces of the place, there would be two straight lines corresponding to the two bodies in that place.
Objection 3: Further, it would seem impossible that by a miracle a body which is enclosed within another should not be in a place, for then it would have a common and not a proper place, and this is impossible. Yet this would follow if two bodies were in the same place. Therefore this cannot be done by a miracle. The minor is proved thus. Supposing two bodies to be in the same place, the one being greater than the other as to every dimension, the lesser body will be enclosed in the greater, and the place occupied by the greater body will be its common place; while it will have no proper place, because no given surface of the body will contain it, and this is essential to place. Therefore it will not have a proper place.
Objection 4: Further, place corresponds in proportion to the thing placed. Now it can never happen by a miracle that the same body is at the same time in different places, except by some kind of transformation, as in the Sacrament of the Altar. Therefore it can nowise happen by a miracle that two bodies be together in the same place.
On the contrary, The Blessed Virgin gave birth to her Son by a miracle. Now in this hallowed birth it was necessary for two bodies to be together in the same place, because the body of her child when coming forth did not break through the enclosure of her virginal purity. Therefore it is possible for two bodies to be miraculously together in the same place.
Further, this may again be proved from the fact that our Lord went in to His disciples, the doors being shut ( John 20:19 , 26 ).
I answer that, As shown above (A[2]) the reason why two bodies must needs be in two places is that distinction in matter requires distinction in place. Wherefore we observe that when two bodies merge into one, each loses its distinct being, and one indistinct being accrues to the two combined, as in the case of mixtures. Hence it is impossible for two bodies to remain two and yet be together unless each retain its distinct being which it had hitherto, in so much as each of them was a being undivided in itself and distinct from others. Now this distinct being depends on the essential principles of a thing as on its proximate causes, but on God as on the first cause. And since the first cause can preserve a thing in being, though the second causes be done away, as appears from the first proposition of De Causis, therefore by God's power and by that alone it is possible for an accident to be without substance as in the Sacrament of the Altar. Likewise by the power of God, and by that alone, it is possible for a body to retain its distinct being from that of another body, although its matter be not distinct as to place from the matter of the other body: and thus it is possible by a miracle for two bodies to be together in the same place.
Reply to Objection 1: This argument is sophistical because it is based on a false supposition, or begs the question. For it supposes the existence, between two opposite superficies of a place, of a dimension proper to the place, with which dimension a dimension of the body put in occupation of the place would have to be identified: because it would then follow that the dimensions of two bodies occupying a place would become one dimension, if each of them were identified with the dimension of the place. But this supposition is false, because if it were true whenever a body acquires a new place, it would follow that a change takes place in the dimensions of the place or of thing placed: since it is impossible for two things to become one anew, except one of them be changed. Whereas if, as is the case in truth, no other dimensions belong to a place than those of the thing occupying the place, it is clear that the argument proves nothing, but begs the question, because according to this nothing else has been said, but that the dimensions of a thing placed are the same as the dimensions of the place; excepting that the dimensions of the thing placed are contained within the bounds of the place, and that the distance between the bounds of a place is commensurate with the distance between the bounds of the thing placed, just as the former would be distant by their own dimensions if they had them. Thus that the dimensions of two bodies be the dimensions of one place is nothing else than that two bodies be in the same place, which is the chief question at issue.
Reply to Objection 2: Granted that by a miracle two bodies be together in the same place, nothing follows either against common principles, or against the definition of a line, or against any conclusions of geometry. For, as stated above (A[2]), dimensive quantity differs from all other accidents in that it has a special reason of individuality and distinction, namely on account of the placing of the parts, besides the reason of individuality and distinction which is common to it and all other accidents, arising namely from the matter which is its subject. Thus then one line may be understood as being distinct from another, either because it is in another subject (in which case we are considering a material line), or because it is placed at a distance from another (in which case we are considering a mathematical line, which is understood apart from matter). Accordingly if we remove matter, there can be no distinction between lines save in respect of a different placing: and in like manner neither can there be a distinction of points, nor of superficies, nor of any dimensions whatever. Consequently geometry cannot suppose one line to be added to another, as being distinct therefrom unless it be distinct as to place. But supposing by a Divine miracle a distinction of subject without a distinction of place, we can understand a distinction of lines; and these are not distant from one another in place, on account of the distinction of subjects. Again we can understand a difference of points, and thus different lines described on two bodies that are in the same place are drawn from different points to different points; for the point that we take is not a point fixed in the place, but in the placed body, because a line is not said to be drawn otherwise than from a point which is its term. In like manner the two circles described in two spherical bodies that occupy the same place are two, not on account of the difference of place, else they could not touch one another as a whole, but on account of the distinction of subjects, and thus while wholly touching one another they still remain two. Even so a circle described by a placed spherical body touches, as a whole, the other circle described by the locating body.
Reply to Objection 3: God could make a body not to be in a place; and yet supposing this, it would not follow that a certain body is not in a place, because the greater body is the place of the lesser body, by reason of its superficies which is described by contact with the terms of the lesser body.
Reply to Objection 4: It is impossible for one body to be miraculously in two places locally (for Christ's body is not locally on the altar), although it is possible by a miracle for two bodies to be in the same place. Because to be in several places at once is incompatible with the individual, by reason of its having being undivided in itself, for it would follow that it is divided as to place. on the other hand, to be in the same place with another body is incompatible with the individual as distinct from aught else. Now the nature of unity is perfected in indivision (Metaph. v), whereas distinction from others is a result of the nature of unity. Wherefore that one same body be locally in several places at once implies a contradiction, even as for a man to lack reason, while for two bodies to be in the same place does not imply a contradiction, as explained above. Hence the comparison fails.
Whether one glorified body can be in the same place together with another glorified body?
Objection 1: It would seem that a glorified body can be in the same place together with another glorified body. Because where there is greater subtlety there is less resistance. If then a glorified body is more subtle than a non-glorified body, it will offer less resistance to a glorified body: and so if a glorified body can be in the same place with a non-glorified body, much more can it with a glorified body.
Objection 2: Further, even as a glorified body will be more subtle than a non-glorified body, so will one glorified body be more subtle than another. Therefore if a glorified body can be in the same place with a non-glorified body, a more subtle glorified body can be in the same place with a less subtle glorified body.
Objection 3: Further, the body of heaven is subtle, and will then be glorified. Now the glorified body of a saint will be able to be in the same place with the body of heaven, since the saints will be able at will to travel to and from earth. Therefore two glorified bodies will be able to occupy the same place.