Only by Becoming a Living Corpse Can One Realize the Dao.

If you want the thought of longing for the Dharma to become the dominant thought in your mind, then of course you must regard the Buddhadharma as paramount, not taking other worldly people, matters, or things as important. Place all of your mental attention, or the vast majority of it, on the Buddhadharma, and as much as possible avoid looking elsewhere. Put yourself lowly and humbly; regard your own five-aggregate body as nothing at all, utterly worthless, without a single skill. When you are among people, you may let them feel that you are a bit foolish, leaving no other impression. Do not show off or boast outwardly about how capable you are—having literary and artistic cultivation, being skilled at the qin, chess, calligraphy, and painting, being good at singing and dancing, having an elegant writing style, being good at graphic design and editing, being versed in poetry, lyrics, songs, and rhapsodies, being adept at scheming for power and influence, being skilled at marketing and planning, being some dignitary or noble, being handsome and outstanding, being second to none, and so on and so forth. Cast all of these aside and forget who you are. All day long, apart from the Buddhadharma, just muddle along in a daze, be a living dead person—as long as you can stay alive, that is enough—and love nothing in the worldly world. In this way, your thoughts will all be of the Buddhadharma, the dominant thought will be clear, and you absolutely need not worry about failing to attain the Way. "Only when the worldly thoughts are beaten to death will your world-transcending Dharmakāya be allowed to live."

Most people cannot do this. The Buddhadharma is precisely about leaving the mundane and turning away from the mundane—what can be done about it? To enjoy worldly pleasures on the one hand while also having realization of the Buddhadharma on the other, gaining both the fish and the bear's paw—this is impossible. One must first transcend the world before one can enter the world.