Buddhism is also Mahayana in origin, but is discussed below under the heading of Vajrayana (also commonly referred to as "Northern Buddhism"). There are a variety of strands in Eastern Buddhism, of which "the Pure Land school of Mahayana is the most widely practised today.". In most of this area however, they are fused into a single unified form of Buddhism. In Japan in particular, they form separate denominations with the five major ones being: Nichiren, peculiar to Japan; Pure Land; Shingon, a form of Vajrayana; Tendai, and Zen. In Korea, nearly all Buddhists belong to the Chogye school, which is
Reality in Buddhism of interdependent origination. One of the most discussed themes in Buddhism is that of the emptiness ("sunyata") of form (Pali: "rūpa"), an important corollary of the transient and conditioned nature of phenomena. Reality is seen, ultimately, in Buddhism as a form of 'projection', resulting from the fruition ("vipaka") of karmic seeds ("sankharas"). The precise nature of this 'illusion' that is the phenomenal universe is debated among different schools. For example; Buddhist sutras devote considerable space to the concept of reality, with each of two major doctrines—the Doctrine of Dependent Origination ("pratitya-samutpada") and the Doctrine of Cause and Effect ("karma" and