In its contacts with death, Buddhism produced many doctrines, but the Chan (Zen) sect of Mahayana Buddhism does not speak of heaven. It goes straight to the point and asks where life comes from when we are born, and where it goes when we die.
觸到生死，佛家產生各種說法，但大乘裡的禪宗不談天堂，直指本源，生從何來，死從何往？