Here is an attempt to expand on the idea that schizophrenia could be a "natural healing process" -- or perhaps more accurately a mind's attempt to cope internally with something it failed to cope with in reality. That is, something happened that challenged the mind's psychological integrity, and that mind found only an internal mechanism to try to cope with the threat.

The mind, feeling that its every move is being "watched" or even "controlled," may have the need to identify the nature of that threat, being otherwise unable to understand its true nature. I am proposing that the threat may have occurred in childhood, and it is largely forgotten by the time the schizophrenia is identified. I assure you that there really are parents who try to monitor and control a child's every thought or expression of thoughts. So any attempt to release a mind from the need to find an explanation for the feeling of control will not be successful if it is only instructed to give up the explanation, or made fun of for hanging on to "incorrect" ideas.

This way of looking at things starts with the supposition that the thoughts of the sufferer actually have meaning in the life of the sufferer, and need to be investigated, rather than suppressed. I think it is worth considering this kind of supposition, although any therapy based on it may be more challenging to the therapist than the wish to just make the symptoms go away.

This attempted "explanation" of symptoms would also be consistent with the observation, which I have the impression is correct, that auditory hallucinations usually consist of the perception of hostile voices, voices critical of the sufferer, or full of hatred for him or her. These also could be reasonably seen, I think, as memories of actual events.

In this connection I think DID would also be seen as an attempt by a mind to cope with a perceived threat to its integrity which it could not cope with in reality. That is, splitting off perceptions of a threat which is so terrifying that splitting is the only mechanism found to reduce the terror.