Our physical body is like an animal’s body. It is similar to all bodies of our world and, obviously, does not have any spiritual property in itself. Bodies, in our world, do not differ in terms of spiritual properties and just change each other in the process of reincarnation. Physiological properties of bodies are identical. Say, if someone suffers from a certain illness, then a physician treats this body the same way he treats other people with the same illness. In other words, our bodies are similar.
Meanwhile, in the spiritual, one body is completely different from the other. There is only one spiritual realm. It is the realm of properties that are closer – further in relation to the Creator. The presence of the material bodies – still, vegetative, animated – does not make a difference in the spiritual realm, because here the difference is defined only in terms of spiritual properties.
http://www.youtube.com/watch?v=Pyp34v6Lmcc