Our version of reality is an illusion. It doesn't exist outside our head. Zen enlightenment is just "seeing things as they are" -- and all that's needed is a shift of perception. But beware, Zen Master Adyashanti warns, "There's nothing in it for the ego."
"Most of us want to feel better; we don't actually want to see that we're misperceiving things. But that's the core of spirituality. And the only way to really wake up is to realize that the way you perceive yourself may not be true."