Three flowers gather at the top, which is the academic language of Neidan. "Three flowers gather at the top" refers to the stage when meditation reaches the essence of qi. At this time, the eight strange meridians are extremely unobstructed, and the only thing that can be felt is the reaction of the mind. If you calm down gradually, your eyes will glow. At this time, you will suddenly enter a state of complete ecstasy. Only the "mud pillow palace" and "Baihui point" on the top of your head feel like the opening of a skylight, such as the transmission of sunlight, which suddenly opens up and presents an unparalleled sense of coolness.
In ancient times, flowers and China were linked together, and China was the original word of flowers, so three flowers were three, indicating the brilliance of human spirit. The so-called gathering is a mixture of energy and spirit gathered in the porch. In essence, the inner meaning of three flowers is three yang. The so-called three yang is the yang in yin, the yang in yang, and the yang in yin and yang. In ancient China, water represented the north, which was dry in the sky, and in the human body, it corresponded to the kidney. Fire represents the south, is ding in the sky, and corresponds to the heart; Gold represents the west, it is the Geng Xin in the sky, corresponding to the lungs. Inner alchemy refines essence, which is to remove kidney, water and decyl, and nourish nonyl; Refining the spirit is to remove the heart of lung gold and promote Geng; Refining the spirit is empty, that is, except for the ding in the heart fire, it is promoted to C. Its non-combination, Geng and C symbolize the three yang in the spirit, sublimate after entering the fire, and finally gather in the mud pill palace, which is called the gathering of three flowers.