The difficulty with Zen practice is that there is not enough information – it is just thinking. Awareness is getting information and when the question arises, the answer comes with experience.
I talked to the Korean yogis – they think about ‘who am I or who is angry?’ There are many koans.
I said ‘you need awareness’ – first, you need to be aware of your body and mind all the time and only then use the question.
When we only practice the koan, we think too much and get a lot of headache. Think, think, think and the head also becomes very tense.
Awareness is information. If you have enough information, when the koan question comes, they match – they work together and it is finished. If they ask the koan when they don’t have the information yet, then the wisdom answer does not arise.