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.
DogenMountains and rivers at this very moment are the actualization of the world of the ancient Buddhas. Each, abiding in its phenomenal expression, realizes completeness.
Dogen