The fourth is spiritualism aimed at realizing human higher self. It originated from an ancient secret tradition and was brought to the west by George Gurdjieff and Peter Ouspensky in the early 20th century. They reinterpreted the whole system in a language suitable for modern people. The fourth truth is based on the knowledge of self-nature, personal confirmation and painful transformation, and it is a practice-oriented system. The fourth doctrine revolves around three themes: controlling the secular lower self; Practice; Awakening and awareness of the sacred present-these themes are the basis of all secret traditions. Achieving the sacred moment of silence is the greatest miracle in the universe, and every secret tradition has its own way to express this ultimate truth.