Everything we think of as real is an illusion. There is no such thing as time or space, energy or matter, causality or duality. There is no universe and there is no you. That’s what nonduality means. This isn’t high philosophy, it’s the end of philosophy. You can’t prove anything because there is no such thing as objective knowledge. That’s an actual fact, the kind that science can’t afford to acknowledge, but you can. You can disprove everything because that’s what nonduality does; it destroys everything in the dreamstate.