Gerald Epstein, MD (1935-2019) was a pioneer in the field of integrative medicine and a leading expert in the therapeutic use of mental imagery for healing physical and emotional ailments. Initially trained as a Freudian analyst, he shifted his focus in 1974 to study under Mme. Colette Aboulker-Muscat, becoming a major catalyst in using the Western spiritual tradition in healing. Dr. Jerry (as he was affectionately known) directed The American Institute for Mental Imagery (AIMI) in New York City until his death in 2019. There, he facilitated group practices, trained healthcare professionals, and taught courses on the Gerald Epstein Medical System (GEMS), a therapeutic treatment that uses one's inner wisdom to balance and repair mind, body, and spirit. In addition to his teachings and private practice, Dr. Jerry authored numerous books and audios, including the seminal Healing Visualizations: Creating Health through Imagery and Encyclopedia of Mental Imagery: Colette Aboulker-Muscat's 2,100 Visualization Exercises for Personal Development, Healing, and Self-Knowledge.