Taijiquan book wrote: Baihui point lead up, may I ask what is the meaning of lead up?

There is no special meaning, they are all used to cheat people.

Taijiquan is a kind of juggling, can't combat, health, fat loss, cure disease, nothing. It's not even as good as square dancing. Taijiquan can live to the present is through the film and television literature constantly artificial deification, touting, cheating to live to the present.