Intensively keep an awareness, that is a beginning of meditation. Keep an awareness in a thing of daily life. This awareness is the essence of our being that led us to an awakening. Waking up from whatsoever you believe, from the dream of thought.
The mind whispering, and you believe, the mind is master and you are not. you and the mind is one thing. Using Koan, you will recognize the mind is not you, but not on your knowledge through a meditation you experience it.
Until that you are one with your mind, even that is such a great flash of wit. This approach is a zen approach, there is no exception of any kind of mind. No mind but contemplation, an awareness state.
Koan method, also help to break a layers of our limitation. Your believe system, a prejudice, a weak feelings, an obsession, etc... that alway keeping us in certain expression of defense, against others and yourself.
you are not an aware of those and who you are. Koan method you inquiry yourself who you are. we use [ who is in ? ] or [ who am i ? ]. Also an active meditation that purify our body and soul. You will move towards to your center, your essence.
Koan is a zen approach, a trainee of Zen use this technique to reach No Mind State. Koan is working through the thought, feeling, whatsoever lie on us that makes unclear of ourself.
Koan is an inquiry, inquiry into one's self but not a philosophy, not a theory of practice, not talking about the paradise or the hell and the heaven, and ! be careful even not fight with that when it comes. simply watch and noticing.
An inquiry simply bring us to the reality, understanding and open our eyes to see the truth. An inquiry reach deeply one's self until you don't find "you" there, but something you know as you are witness.