This book is a detailed and sensitive account of a severe depression patient’s journey in search of the light of the soul. Unlike the typical self-help books we’ve encountered over the years, it provides a realistic, intricate, and emotionally charged insight into depression treatment. The author candidly shares his own treatment process, where the dark night rushed in, stealing his spiritual vitality, along with his romance and wisdom. Through many turbulent nights, he transformed into a soul explorer, discovering the therapeutic power of "talk therapy" with his sister, successfully achieving self-rescue. He turned the rugged paths of the human heart into shaded lanes, extending this method to help others, becoming a healer of souls. This book not only summarizes treatment methods for depression patients but also delves into the individual’s pain, reflections, and insights along the path he explored, blending methodological rigor with the warmth of personal essays.