Seated meditation

All Buddhas, without exception, confirm Their having realized the state of enlightenment by demonstrating Their ability to directly Transmit the wondrous Dharma.1 As embodiments of the Truth, They have employed an unsurpassed, inconceivably marvelous method which functions effortlessly. It is simply this method that Buddhas impart to Buddhas, without deviation or distortion, and Their meditative state of delight in the Truth is its standard and measure. As They take pleasure wherever They go to spiritually aid others while in such a state, They treat this method of Theirs—namely, the practice of seated meditation—as the proper and most straightforward Gate for entering the Way.

SOURCE: Master Dogen's "Shobogenzo"