Book excerpt: • Examines the therapeutic potential of expanded states, underground psychedelic psychotherapy, harm reduction, new approaches for healing individual and collective trauma, and training considerations • Addresses challenging psychedelic experiences, spiritual emergencies, and the central importance of the therapeutic relationship • Details the use of cannabis as a psychedelic tool, spiritual exploration with LSD, micro-dosing with Iboga, and MDMA-assisted psychotherapy for PTSD Exploring the latest developments in the flourishing field of modern psychedelic psycho-therapy, this book shares practical experiences and insights from both elders and newer research voices in the psychedelic research and clinical communities. The contributors examine new findings on safe and skillful work with psychedelic and expanded states for therapeutic, personal, and spiritual growth. They explain the dual process of opening and healing. They explore new approaches for individual inner work as well as for the healing of ancestral and collective trauma. They examine the power of expanded states for reparative attachment work and offer insights on the integration process through the lens of Holotropic Breathwork. The contributors also examine the use of cannabis as a psychedelic tool, spiritual exploration with LSD, microdosing with Iboga, treating depression with psilocybin, and MDMA-assisted psychotherapy for PTSD. Revealing diverse ways of working with psychedelics in terms of set, setting, and type of substance, the book concludes with discussions of ethics and professional development for those working in the field as well as explores considerations for training the next generation of psychedelic therapists.