Dr. Stanislav Grof’s book Realms of the Human Unconscious: Observations from LSD Research surpassed any expectations I had when I purchased it. It truly takes the reader on a trip into the most remote depths of the human psyche. Grof’s model of the unconscious, based on more than 30 years of experience, provides incredible insight into a realm beyond anything you thought you knew. The model involves what Grof calls “Systems of Condensed Experience” (COEX Systems). In addition to these experiences, patients typically encounter experiences classified by Grof as either perinatal or transpersonal. I suggest reading the book to learn more about this topic and the models.
In a suitable analogy, Grof declares LSD to be psychiatry’s fundamental tool; it is like the astronomer’s telescope or the biologist’s microscope. Grof refers to the powerful ability of LSD to facilitate the revealing of deep unconscious systems like that of sonar or radar, revealing the largest and most relevant emotional disturbances beneath the surface of the unconscious ocean. It allows therapists to have a direct reading of a patient’s relevant thought systems and important experiences. Readers begin to realize how incredibly important this molecule is for the well-being of the psyche and the spiritual and mental development of humanity.
For a simple introduction, I would suggest The Holotropic Mind rather than this book. Or if you prefer an audio book, Audible has The Transpersonal Vision. I would also recommend joining the email list for the Multidisciplinary Association for Psychedelic Studies (MAPS).