In the process of Zazen meditation, you need to step through the stages of "weariness", "enjoyment", and "emptiness of the body". The first stage is the most difficult for the beginners. This time, you should regard your agitated mind as an object, trying all kinds of methods to cope with it.
For example, you can contemplate the pain of your leg if your leg pains, contemplate irritability if you are irritable. In all these trainings, you are practicing meditation. The moment when you feel very annoyed or agitated is usually the time when you could build up the power of concentration, because at this time you are definitely not feeling drowsy, so you could easily concentrate on this annoyance and agitation. Zazen meditation is nothing but a state of high concentration.
Therefore, don’t be afraid of annoyance or agitation. You are practicing meditation while you are fighting against these emotions. Do not make any complaints and consider these emotions as enemies. Remember that you are practicing meditation when you feel agitated and fight against agitation. Don’t worry about too many thoughts. The key is that you have already noticed these thoughts. This kind of keen awareness is the most important. "Late awareness is more serious than the rise of thoughts." It is important that you regard these disturbing thoughts as the object, and keep contemplating them.
