Atheism in the afterlife?

I seen a spiritual teacher's
words and noted them here and there. Someone asked about Atheism and he
replied after laughing for sometime.

"You go to nothing. Then when you are tired of that you go into the
spirit world and find another incarnation to continue your training. But
trust yourself because all of it is necessary to whatever you think you
need to do there is nothing but time in this universe"

well now that is has been asserted (once again without the slightest hint of any fact) by a "spiritual teacher" how could i not believe it. if he wants to be taken seriously he needs to prove there is a "spirit" and that it has its own special world to go to. calling charlatans like this guy, a teacher is a disgrace to all honest and intelligent teachers out there. Wait i take that back, it is a disgrace even to the revolting teachers who fuck their students. Even they have more integrity than this guy.