Chemical imbalance in the brain may be stimulated to make it better with the hallucinogenic compounds?...................
Expert witness ping!
With the cancer patients it was more about confronting their fear of dying and psychodelics administered in a controlled environment were quite successful in transforming the patient’s outlook. More at the link...
http://www.nytimes.com/2014/03/04/health/lsd-reconsidered-for-therapy.html