留針取氣候沉浮出入徐徐必逗留能令榮衛(wèi)縱橫散．巧妙元機(jī)在指頭． 留針者凡出針至于天部入針至于地部．須在皮膚肌肉間．徐徐容留令榮衛(wèi)宣散方可出針入針．若出針太急．則血隨針出．反傷榮衛(wèi)其巧妙元機(jī)全在指頭之間也．