What is the element in which spirit-lives live?

Now, about this element in which we live.

It, undoubtedly, has a place in space, for it is all around the earth.

Yes; every tree visible has its invisible counterpart.

When you, before sleep, come out consciously into this world, you see things that exist, or have existed, in the material world also.

You cannot see anything in this world, which has not a physical counterpart in the other.

There are, of course, thought-pictures, imaginary pictures, but to see imaginatively is not to see on the astral plane–not by any means.