"
"Dao is the only thing without a counterpart, hence the name Dan. Alone, it is enough to clear the sky, settle the earth, fill the grains, and make one immortal.
"Dan is one, which is very close to Dao itself. Neidan (internal Dan) is the practice to refine one's internal organs so that one could achieve the Great Dao.
"Most people are mislead in this concept. Because of the internet, modern men have easy access to a multitude of information that might not be necessarily true. Some are purely fictional and exaggerated, speaking of Dan as a bead-like object hidden in one's body. That is not the case."
"Pffft!"