Even the (neo-)Platonists know that there must be some kind of immortal physical body. Their argument that it is the earth itself which is immortal does not allow them to escape their own objections that physical material is somehow sinful and wicked. Christians, on the other hand, understand that
To attain to blessedness, then, there is no need to be free of every kind of a body but only of those which are corruptible and irksome, burdensome and moribund, not such bodies as God, in His goodness, created for our first parents but only such as were imposed as a punishment.Chapter 18:
We should never confuse physical size with condition. The existence of gravity shows us that there is more to the universe than we can see with our naked eyes. The Platonists accept this and understand that 'the lesser gods' can adapt the reality beyond what we can see, so much can God both reform that invisible substance and our visible substance when He brings us into glory.