The Buddha's enlightenment under the Bodhi tree, kept on December 8 in Japan; Zen monasteries end a week of meditation. Bodhi Day is the Buddhist holiday that commemorates the day that Gautama Buddha (Shakyamuni) is said to have attained enlightenment, also known as bodhi in Sanskrit and Pali. According to tradition, Siddhartha had recently forsaken years of extreme ascetic practices and resolved to sit under a Ficus religiosa, now known as the Bodhi Tree, and simply meditate until he found the root of suffering, and how to liberate oneself from it. Wiki link Dates computed: Theravada full moons on the South Asian lunar calendar (New Delhi), East Asian days on the Chinese calendar (China's time), Japan's on fixed dates. Text: Wikipedia (CC BY-SA).