Natural and Spiritual Bodies
When a seed is planted in the ground, it is as though it had died and is buried.
For a long time after its "death," the seed cannot be seen, but finally it rises again as a beautiful flowering plant, or sheaf of grain, or even a lovely tree.
Our human bodies, because of sin and the curse, eventually die and are buried; but one day (like the planted seed) they will appear again, but now immortal and glorified, far greater than they were before--that is, of course, if their real inhabitants (their eternal created spirits) have been born again through faith in their already-resurrected Savior.