Alchemy
Endan is through the line of gas, guidance, breathing breathing, in the body alchemy to achieve the purpose of immortality. The meaning of the outer and inner dan is the same, but the meaning of the meaning is completely different, such as the human metaphor for the burning Dan pill furnace tripod, but theoretically still have the same. Ancient alchemy of the teachings of the majority of mentoring, oral dictation, outsiders difficult to understand. Will be the body of the three pubic region called "ternary" is Taoist inner alchemy argument. "Chaos sub-points, there are heaven and earth ternary gas, the generation of human relations, long-kept all things. People also law, the number of triple burner, three pubic region, to keep the body shape, to students air." Also think "ternary" means Yuan Jing, strength, the gods. ...