The schizophrenic may indeed be mad. He is mad. He is not ill. I have been told by people who have been through the mad experience how what was then revealed to them was veritable manna from Heaven. The person's whole life may be changed, but it is difficult not to doubt the validity of such vision. Also, not everyone comes back to us again.
Night-dreams trace on Memory's wall Shadows of the thoughts of day, And thy fortunes, as they fall, The bias of the will betray.