I said further that the erudite fully believe the soul that lives on after death—the spirit—is abstract thought. Obviously, then, they refuse to accept any term that involves dimension or anything implied by dimension. Thought has no extension apart from the person thinking, but the person thinking and the objects of thought do have extension. Moreover, if the objects of thought are not dimensional, people objectify them and make them three-dimensional in order to understand them.
From this it is abundantly clear that intellectuals take the soul or spirit to be nothing but pure thought. The consequence is an unalterable belief that the soul will vanish when they die.
from Secrets of Heaven, Volume 1, Section 445