Necessary Knowledge in Chan Sitting*
Our everyday activities are executed within the Path itself Is there anywhere that is not a place for practicing the Path? A Chan Hall should not even be necessary. Furthermore, Chan practice is not just sitting meditation. The Chan Hall and Chan sitting meditation are for sentient beings with deep karmic obstructions and shallow wisdom.
When one sits in meditation, one must first know how to regulate the body and mind. If they are not well regulated, then a small harm will turn into an illness and a great harm will lead to demonic entanglements. This would be most pitiable. Walking and sitting meditation in the Chan Hall are for the regulation of body and mind. There are other ways to regulate the body and mind, but I will talk about these two fundamental methods.
When you sit in the lotus position, you should sit naturally straight. Do not push the waist forward purposely. Doing so will raise your inner heat, which later on could result in having sand in the comer of your eyes, bad breath, uneasy breathing, loss of appetite, and in the worst case, vomiting blood. If dullness or sleepiness occur, open your eyes wide, straighten your back and gently move your buttocks from side to side. Dullness will naturally vanish. If you practice with an anxious attitude, you will have a sense of annoyance. At that time you should put everything down, including your efforts to practice. Rest for a few minutes. Gradually, after you recuperate, continue to practice. If you don’t do this, as time goes on you will develop a hot-tempered character, or, in the worst case, you could go insane or fall into demonic entanglements.
There are many experiences you will encounter when sitting Chan, too many to speak of. However, if you do not attach to them, they will not interfere with you. This is why the proverb says: “See the extraordinary yet do not think of it as being extraordinary, and the extraordinary will retreat.” If you encounter or perceive an unpleasant experience, take no notice of it and have no fear. If you experience something pleasant, take no notice of it and don’t give rise to fondness. The “Surangama Sutra” says: “If one does not think he has attained a supramundane experience, then this is good. On the other hand, if one thinks he has attained something supramundane, then he will attract demons.”