What is the spirit world like?

The spiritual world is a world, something like earth, but is of entirely spiritual substance, instead of material, and is on a vaster and grander scale.

My mind reviewed all that I had seen and heard since I had left the earth, and this was the sum and substance of what I had learned in perhaps the space of twelve hours. 

First, that there actually was a life after the death of the body. 

Second, that a glorious angel had accompanied me to this world―that it was not like anything I had ever conceived of―or had been taught―or rather, it was a world something like the one I had left, but of entirely spiritual substance instead of material―that it was on a vaster and grander scale.

And now my mind began to ponder on the last lesson, which Voncelora had taught me―that there existed, for the spirit of man, an eternal counterpart―or other-half.

The Discovered Country