In doing zazen it is desirable to have a quiet room. You should be temperate in eating and drinking, forsaking all delusive relationships. Setting everything aside, think of neither good nor evil, right nor wrong. Thus having stopped the various functions of your mind, five up even the idea of becoming a Buddha.
DogenThere is no beginning to practice nor end to enlightenment; There is no beginning to enlightenment nor end to practice.
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.
DogenThrough one word, or seven words, or three times five, even if you investigate thoroughly myriad forms, nothing can be depended upon. Night advances, the moon glows and falls into the ocean. The black dragon jewel you have been searching for, is everywhere.
Dogen