Buddhism deity and its associated mandala. Another element of Tantra is the need for ritual initiation or empowerment (abhiṣeka) by a Guru or Lama. Some Tantras like the Guhyasamāja Tantra features new forms of antinomian ritual practice such as the use taboo substances like alcohol, sexual yoga, and charnel ground practices which evoke wrathful deities. Zen Buddhism (禅), pronounced "Chán" in Chinese, "seon" in Korean or "zen" in Japanese (derived from the Sanskrit term "dhyāna", meaning "meditation") is a form of Mahayana Buddhism found in China, Korea and Japan. It lays special emphasis on meditation, and direct discovery of the Buddha-nature.
Buddhism in Japan 630 and introduced to Japan in 654 by Dōshō, who had travelled to China to study under him. The is an important text for the Hossō school. This school was transmitted to Japan in the 7th century. Literally: "Three-Discourse School"; a Madhyamaka school which developed in China based on two discourses by Nagarjuna and one by Aryadeva. Madhyamaka is one of the two most important Mahayana philosophies, and reemphasizes the original Buddhist teachings that phenomena are neither truly existent or absolutely non-existent, but are characterized by impermanence and insubstantiality. 736: Bodhisena introduces the Kegon (Huayan or Avataṃsaka) school to Japan.