Kūkai Explained

, born ^[2] posthumously called, was a Japanese Buddhist monk, calligrapher, and poet who founded the esoteric Shingon school of Buddhism. He travelled to China, where he studied Tangmi (Chinese Vajrayana Buddhism) under the monk Huiguo. Upon returning to Japan, he founded Shingon—the Japanese branch of Vajrayana Buddhism. With the blessing of several Emperors, Kūkai was able to preach Shingon teachings and found Shingon temples. Like other influential monks, Kūkai oversaw public works and constructions. Mount Kōya was chosen by him as a holy site, and he spent his later years there until his death in 835 CE.

Because of his importance in Japanese Buddhism, Kūkai is associated with many stories and legends. One such legend attributes the invention of the kana syllabary to Kūkai, with which the Japanese language is written to this day (in combination with kanji), as well as the Iroha poem, which helped to standardise and popularise kana.^[3]

Notes and References

1. Kūkai was born in 774, the 5th year of the Hōki era; his exact date of birth was designated as the fifteenth day of the sixth month of the Japanese lunar calendar, some 400 years later, by the Shingon sect (Hakeda, 1972 p. 14). Accordingly, Kūkai's birthday is commemorated on June 15 in modern times. This lunar date converts to 27 July 774 in the Julian calendar, and, being an anniversary date, is not affected by the switch to the Gregorian calendar in 1582. Similarly, the recorded date of death is the second year of the Jōwa era, on the 21st day of the third lunar month (Hakeda, 1972 p. 59), i.e. 22 April 835.
2. Web site: http://www.koyasan.or.jp/shingonshu/kobodaishi.html . ja:弘法大師の誕生と歴史 . 高野山真言宗 総本山金剛峯寺 . 2019-01-18.
3. Book: Ryūichi Abe. The Weaving of Mantra: Kūkai and the Construction of Esoteric Buddhist Discourse. 2000. Columbia University Press. 978-0-231-11287-1. 3, 113–4, 391–3.