The Importance of Memory

I don't know if I think it was like baffled by the fact that IDon't know if any internal experiences ever happened. It's impossible to know to have a sense of since there's substance list. Whatever memory about that arises, it seems to be equally substanceless and it's just a thought right now. The body reacts to our dreams sleeping dreams and then they're just wiped away. That's what I loved about Zen is at the end everything's just wiping away.