Recommended literature : Dr Stanislav Grof : Spiritual Emergency.

Increasing numbers of people involved in personal transformation are experiencing spiritual emergencies  crises when the process of growth and change becomes chaotic and overwhelming. Individuals experiencing such episodes may feel that their sense of identity is breaking down, that their old values no longer hold true, and that the very ground beneath their personal realities is radically shifting. In many cases, new realms of mystical and spiritual experience enter their lives suddenly and dramatically, resulting in fear and confusion. They may feel tremendous anxiety, have difficulty coping with their daily lives, jobs, and relationships, and may even fear for their own sanity. Unfortunately, much of modern psychiatry has failed to distinguish these episodes from mental illness. As a result, transformational crises are often suppressed by routine psychiatric care, medication, and even institutionalization. However, there is a new perspective developing among many mental health professionals and those studying spiritual development that views such crises as transformative breakthroughs that can hold tremendous potential for physical and emotional healing. When understood and treated in a supportive manner, spiritual emergencies can become gateways to higher levels of functioning and new ways of being. In this book, foremost psychologists, psychiatrists, and spiritual teachers address the following questions: What is spiritual emergency? What is the relationship between spirituality, “madness,” and healing? What forms does spiritual emergency take? What are the pitfalls — and promises — of spiritual practice? How can people in spiritual emergency be assisted by family, friends, and professionals? This groundbreaking work reveals that within the crisis of spiritual emergency lies the promise of spiritual emergence and renewal.

Source : https://www.bol.com/nl/f/spiritual-emergency-when-personal-transformation-becomes-a-crisis/37304118/?country=BE

Stanislav Grof, M.D., is a psychiatrist with more than thirty years of research experience in nonordinary states of consciousness. He was born and educated in Prague, Czechoslovakia, and received an M.D. from Prague's Charles University School of Medicine, where he specialized in psychiatry. He was the principle investigator for a program at the Psychiatric Research Institute that explored the potential of psychedelic therapy. For his dissertation on this subject, he was awarded a Ph.D. by the Czechoslovak Academy of Sciences.

Also recommended literature by Dr John Weir Perry: https://www.amazon.ca/Trials-Visionary-Mind-Spiritual-Emergency/dp/0791439887