Zen personal trouble or crisis. Though Zen-narrative states that it is a "special transmission outside scriptures" which "did not stand upon words", Zen does have a rich doctrinal background, which is firmly grounded in the Buddhist tradition. It was thoroughly influenced by the Chinese understanding of Yogacara and the Buddha-nature doctrine, Zen integrates both Yogacara and Madhyamaka and the influence of Madhyamaka can be discerned in the stress on non-conceptual insight and the paradoxical language of the koans. Most essential are "the most fundamental teaching that we are already originally enlightened", and the Bodhisattva ideal, which supplements insight with Karuṇā, compassion
Buddhism and psychology administered a questionnaire to 43 persons dealing with Zen practice, in what was probably the first empirical psychological study of Zen. In the field of psychotherapy, Morita therapy was developed by Shoma Morita (1874-1938) who was influenced by Zen Buddhism. Koji Sato (1905–1971) began the publication of the journal, "Psychologia: An International Journal of Psychology in the Orient" in 1957 with the aim of providing a comparative psychological dialogue between East and West (with contributions from Bruner, Fromm, and Jung). In the 1960s, Kasamatsu and Hirai used Electroencephalography to monitor the brains of Zen meditators. This led to the promotion