Just focus your mind on one thing
Dogen instructed:
Nothing can be gained by extensive study and wide reading. Give them up immediately. Just focus your mind on one thing, absorb the old examples, study the actions of former Zen Masters, and penetrate deeply into a single form of practice. Do not think of yourself as someone's teacher or as someone's predecessor.
Dogen's "A Primer of Soto Zen", 1978, 8
Nothing can be gained by extensive study and wide reading. Give them up immediately. Just focus your mind on one thing, absorb the old examples, study the actions of former Zen Masters, and penetrate deeply into a single form of practice. Do not think of yourself as someone's teacher or as someone's predecessor.
Dogen's "A Primer of Soto Zen", 1978, 8