Qi is invisible, blood is visible. The visible cannot be born quickly, and the invisible of Qi must be obtained to give birth to it.
Qi and blood are a pair of yin and yang relationships, qi serving as is yang and blood serving as yin;
Blood belongs to yin,visible ; Qi belongs to yang, invisible;
Qi serving as internal organs, blood serving as the viscera;
Qi being the governor of blood, blood being t he mother of qi;
stagnation of Qi may bring about numb, stagnation of blood may bring about pain
血气系统理论
气无形，血有形。有形不能速生，必得无形之气以生之。
气血是一对阴阳关系，气为阳，血为阴；
血属于阴，有形；气属于阳，无形；
气从腑，血从脏；
气为血之帅，血为气之母。
气不通则麻，血不通则痛。
