In a deep valley isolated from the world, there exists a little-known religious group - they call themselves "purifiers". In this belief system, the desires of the flesh are regarded as shackles leading to spiritual bondage, and only through extreme dieting and long-term fasting can one cleanse the worldly thoughts and sublimate into a true pure soul. Before dawn every day, the purifiers gather in front of an ancient stone temple surrounded by mountains. They wear rough linen turbans, ragged clothes, and their faces are firm and empty. The temple is full of portraits of past leaders, each of which reveals solemnity and endless pain, as if telling believers: Only asceticism can approach the supreme truth. The supreme leader of the sect, who calls himself the "great master of purification", has formulated a series of strict rituals. The most well-known is the "Extreme Cold Fasting Festival": believers must fast for more than 30 consecutive days, and are only allowed to drink a very small amount of herbal water that has undergone a special purification ceremony during this period. Each time a fast is initiated, it is accompanied by a huge collective confession and meditation. The believers sit in the dark red candlelight, chanting ancient prayers, as if they are using their gradually thinning bodies to sense the mysterious power that is about to overflow. During the extreme diet, the believers will deliberately put themselves on the edge of hunger and exhaustion. They believe that only when the body is tested to its limits can the soul be freed from the shackles of the secular world. Every day, the soul purifiers still gather together to spend the long and silent time of hunger together. The skinny figures swayed by the campfire, without words, but encouraged each other in meditation: only by enduring pain can the divine revelation come. And every time the fasting period ends, the sect will hold a collective ceremony called "Rebirth Ceremony". At this time, the believers will gradually resume eating, but the diet is also strictly controlled. Only a very small amount of coarse grains and special nectar are allowed at each meal, so that the body can return to normal in a slow and gradual way. During the ceremony, believers kneel in front of the altar, confess their past weaknesses and temptations, and vow to continue on this ascetic path of salvation in the future. In the eyes of the Soul Purifiers, the reason why their bodies are fragile is to make their inner determination more precious; their extreme fasting is not self-abuse, but a sacred test to reshape the meaning of life. Everyone who successfully survives the hunger test is regarded as the chosen one of God. Their suffering proves their incomparable piety to the supreme truth and adds strength to the faith of the entire group. This extreme faith scene is full of contradictions and sadness: at the intersection of physical limits and spiritual liberation, pain and hope, sacrifice and salvation are closely intertwined. Although such practices seem absurd and cruel to the outside world, in the eyes of the Soul Purifiers, every hunger and fasting is a baptism of dialogue with the divine and a necessary and painful journey to eternal truth.