LSD is a catalyst or amplifier of mental processes. If properly used it could become something like the microscope or telescope of psychiatry. - Stanislav Grof

Ritual use of psychedelic plants and substances has been a particularly effective technology for inducing holotropic states of consciousness

DYING AND DEATH are the most universal and personally relevant experiences for every single individual. In the course of life, we all lose relatives, friends, teachers, and acquaintances and eventually face our own biological demise. Yet it is quite extraordinary that until the late 1960es, the Western industrial civilization showed an almost complete lack of interest in the subject of death and dying. This attitude has been displayed not only by the general public, but also by scientists and professionals for whom this subject should be of great interest - medical doctors, psychiatrists, psychologists, anthropologists, philosophers, and theologicians. The only plausible explanation for this situation is massive denial of death and psychological repression of everything related to it. This disinterest is even more striking when we compare it to the attitude toward mortality in preindustrial societies...

LSD is a unique and powerful tool for the exploration of the human mind and human nature. Psychedelic experiences mediate access to deep realms of the psyche that have not yet been discovered and acknowledged by mainstream psychology and psychiatry. They also reveal new possibilities and mechanisms of therapeutic change and personality transformation.