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.

Do not follow the ideas of others, but learn to listen to the voice within yourself. Your body and mind will become clear and you will realize the unity of all things.

Studying the Buddha way is studying oneself. Studying oneself is forgetting oneself. Forgetting oneself is being enlightened by all things. Being enlightened by all things is to shed the body-mind of oneself, and those of others. No trace of enlightenment remains, and this traceless enlightenment continues endlessly.

Forgetting oneself is opening oneself

To study Buddhism is to study ourselves. To study ourselves is to forget ourselves.

Although its light is wide and great, the Moon is reflected in a puddle one inch wide. The whole Moon and the entire sky is reflected in one dew drop on the grass.

The one and only thing required is to free oneself from the bondage of mind and body alike, putting the Buddha's own seal upon yourself. If you do this as you sit in ecstatic meditation, the whole universe itself scattered through the infinity of space turns into enlightenment. This is what I mean by the Buddha's seal.