Immanuel Kant says that our mind acts as a filter, or what he calls a "black box", something that takes what we are perceiving from our senses and sorts it out and filters it into what we are actually experiencing. so if this black box in our minds is the only thing that is separating us from what could possibly be actually reality, what happens when it breaks down, or doesn't exist in some people at all. this could be what mental illness is, or more so schizophrenia. schizophrenia is a neuropsychiatric and mental disorder which cause an individual to have hallucinations, delusions, and confused speech and thinking. so what I'm trying to get at is, is something like schizophrenia is a interpretations of raw reality, so a reality that is not altered or filtered by our black box. but we cant see this because everyone else black box functions at optimal capacity, thus meaning that only the few people that actually have schizophrenia are the ones being fooled and deceived by their sense's. so then there are psychedelic hallucinogens which cause you to have psychedelic experiences, what if this is what happens when you damage your black box. like making a CD skip, if you still listen to Cd's.