Written by Liu Yiming (Qing Dynasty ) The so-called 'guan' refers to the fortress or pass that obstructs the passage of Yong. If this level cannot be reached, the destination cannot be reached. This refers to the barrier that hinders the learning and enlightenment of the Tao. It can also refer to the relationship between education, career, and moral cultivation. These [concerns] come from both the natural world and social and interpersonal aspects It all stems from one's own level of cultivation and accuracy in understanding, comprehending, and grasping things, and is closely related to one's own level of effort. 1、 Lust Pass Lust is the most deadly barrier in life, the most evil and poisonous. People are born from the path of lust and die from it. Most of them are caused by lust demons. L