St Thomas argues upon this passage, De anima, I, iii. 26: "They try to describe to us the qualities of the soul, but add no further details as to the body which is to receive it, as though it were possible, as the Pythagorean fables have it, for any soul to array itself in any body: whereas it seems proper that every body should have its own species and form. It is as though they said that the carpenter's art got into the bagpipes: for as art uses its instruments, so the soul has to use the body."

Of God and His Creatures: 2.73