What is perishable and imperishable?

The fact is that churchmen generally, of whatever denomination, are obsessed by the notion that nothing in the spirit world has any solidity at all. 

You are of the spirit, they echo one another, and that can have no substantiality about it. 

What they really think and believe in their inmost minds they alone know. Whatever it may be, outwardly, they cannot contemplate either us—or the land we inhabit other than in terms of something, which is essentially tenuous and vapoury.

The reverse is the truth. We are essentially solid and substantial. To us our own world and its inhabitants are relatively more material than are your earth world and its inhabitants to you.

Among the superabundant advantages, which we have over you is the fact that we are imperishable while you are not.

—Spirit Robert Hugh Benson