I would like to share with you the concepts and the methods of Ch'an. Correct concept, or understanding, is most important, and then comes correct method. Ch'an relies on meditation, but to be enlightened does not require meditation. To understand what I am saying, let us consider what wisdom is, what enlightenment is. Wisdom, or enlightenment, refers to a state of mind where vexations have been extinguished.
Vexations are all the delusory mind-states that proceed from attachment to the idea of self.
All thought, judgment, discrimination, and seeking based on self-centeredness are considered vexations. You come to retreat to benefit from practice. So you begin with self-interest, and this is fine. However, once you engage in the practice, you should put aside considerations of benefit. All you have to do, and all you must do, is practice with effort and consistency.