Thought is always an afterthought of what already happend. This moment is already a memory. And it's not a problem, memories happend also in "now". Whatever it is is undivided, you cannot divide space, vastness but you can thought of division, imagine it, fantasize that it can happen, that it is divided. Reality doesn't care about thoughts. Thoughts doesn't touch space, vastness. When the me-thought disappears the idea of a separate entity disolves into space, vastness. And everything is as it always was from the beginning, space, vastness.
Another thing, the universe has no foundation.