从(cóng )人体表面看,三大穴位跟(gēn )其他(tā )穴(xué )位并无二致,但内环境的不(bú )同(tóng ),却注定了它们的功能是其(qí )他穴位所不能比拟的。上(shàng )丹田的作用(yòng )是扩充识(shí )海(hǎi ),中丹田平(píng )开胸襟,下丹田开(kāi )界(jiè )立府。虽(suī )然这些功(gōng )能,以目前花(huā )失容的见识(shí ),什(shí )么是(shì )识(shí )海(hǎi ),又是怎么平开胸(xiōng )襟的,开界立(lì )府又是怎么回(huí )事,他现在是一头雾水,什么都不(bú )明白。