Putting aside for the moment the fact that psychedelics are essentially just causing your brain to [temporarily] malfunction, this description eerily resembles the post-trip phase of psychedelics. You come back from essentially getting your blindfolds taken from you, seeing the world in ways that make sense only during the psychedelic trip, and even then it's all overwhelming, only to come back and question just about EVERYTHING about reality. It's been 3 years and I'm still going down the quantum physics/cosmology rabbit hole (as well as the philosophy and metaphysics rabbit holes, thanks exurb1a), all due to a strong bad LSD trip. It's beautiful, it's expanded my knowledge of things, but it is, indeed, very much like madness.