There are thousands upon thousands of students who have practiced meditation and obtained its fruits. Do not doubt its possibilities because of the simplicity of the method. If you can not find the truth right where you are, where else do you expect to find it?
DogenThat the self advances and confirms the ten thousand things is called delusion; that the ten thousand things advance and confirm the self is called enlightenment.
DogenSet aside all involvements and let the myriad things rest. Zazen is not thinking of good, not thinking of bad. It is not conscious endeavour. It is not introspection. Do not desire to become a buddha; let sitting or lying down drop away. Be moderate in eating and drinking. Be mindful of the passing of time, and engage yourself in zazen as though you are saving your head from fire.
Dogen