“The Psychology of Healing” by Avicenna (also known as Abu Ali Sina), is a seminal work in the field of medical science and psychology, exploring the intricate relationship between the mind and body and its implications for health. Avicenna, a trailblazer in the fields of medicine and philosophy, introduces various methods in this book for treating diseases through a deeper understanding of human psychology and emotions. He places significant emphasis on the role of emotions and spiritual experiences in overall health and discusses how intention and will can influence the healing of diseases. The Psychology of Healing is valued not only as a historical text but also as a significant resource in understanding health psychology, offering timeless insights into the healing power of the human psyche.