“Without passing through very difficult experiences and even something like psychoneurosis and neurosis we cannot understand human beings and we cannot realize our multidimensional and multilevel development toward higher and higher levels.”
Positive disintegration – a path to the resolution of ‘psychosis’?
“Suffering, aloneness, self-doubt, sadness, inner conflict; these are our feelings that we have not learned to live with, that we have failed to appreciate, that we reject as destructive and completely negative, but in fact they are symptoms of an expanding consciousness. Dr. Kazimierz Dabrowski has spent 45 years piecing together the complete picture of the growth of the human psyche from primitive integration at birth; the person with potential for development will experience growth as a loosening of the stable psychic structure accompanied by symptoms of psychoneuroses. Reality becomes multileveled, the choices between higher and lower realms of behavior occupy our thought and mark us as human. Dabrowski called this process positive disintegration, he declares that psychoneurosis is not an illness and he insists that development does not come through psychotherapy but that psychotherapy is automatic when the person is conscious of his development. To Dabrowski, real therapy is autopsychotherapy; it is the self being aware of the self through a long inner investigation; a mapping of the inner environment. There are no techniques to eliminate symptoms because the symptoms constitute the very psychic richness from which grow an increasing awareness of body, mind, humanity and cosmos… Without intense and painful introspection and reflection, development is unlikely. Psychoneurotic symptoms should be embraced and transformed into anxieties about human problems of an ever higher order. If psychoneuroses continue to be classified as mental illness, then perhaps it is a sickness better than health.” 
“Unless we change our thinking… our understanding of psychogenic emotional and psychosomatic disorders and their therapy will remain superficial, unsatisfactory, and incomplete. Psychiatry and psychology will be unable to genuinely comprehend the nature and origin of spirituality and appreciate the important role that it plays in the human psyche and in the universal scheme of things. These revisions are therefore essential for understanding the ritual, spiritual, and religious history of humanity, shamanism, rites of passage, the ancient mysteries of death and rebirth, and the great religions of the world. Without these radical changes in our thinking, potentially healing and heuristically invaluable experiences (“spiritual emergencies”) will be misdiagnosed as psychotic and treated by suppressive medication.” 
The phases of recovery from psychosis are detailed here