Chan is the primordial awareness, the origin. What is it? Within oneself? Do we have it? Are we “primordial”?
As long as we exert in practicing Chan and observe precepts vigilantly, we can return to our origin through Chan.
A retreat is a type of absorption. It gives us a chance for our chaotic mind to be calm and serene for a moment.
Chan practice is all about returning to our original face.
Keep in mind that every being possesses the treasury of the true Dharma eye.
Sitting meditation is to see our minds. It isn't about entering any specific samadhi as there are no samadhis to enter.