During my psychosis in 2010, I Intuited the fact and had evidence to show that my non-ordinary experiences were not rooted in biology, but were non-physical in origin. Some choose to call them psychological others call it spiritual.
In my research, I discovered that of course our non-ordinary experiences involves biology, we all have bodies, but there is no sound evidence for chronic states of psychic crisis being linked back to a biological defect (biological or genetic) (That may seem like a huge statement here, but it is well known by researchers).
To those that say that, “pills prove that there is a biological cause!” There seems to be a misunderstanding about the brain, experience, and chemicals. Think of your brain as a filter, that filters experiences and information, BUT it is not the end point but the filter. Just like a drunk feels dis-inhibited with certain actions, because alcohol effects the filter “the brain” in the form of output, so to do psych drugs work For SOME in the input and output. They inebriate, inhibit and intoxicate the brain to PROMOTE forms of filtering or gating.
In reality lots of things are going on that we may or may not be aware of. I believe psychosis is simply a process used by the psyche to awaken to a larger picture in order to deal with various experiences or information. When we actually understand and address those experiences and information (material or non-material), then the psychosis will abate.
This is what my research has shown me. I may be wrong. Would you like to discuss?