Tengen-jutsu (天源術) is a Japanese fortune telling method. It is based on yin and yang and the five elements, and uses a persons birth date in the sexagenary cycle and physical appearance to predict ones fate. Tengen-jutsu originated in various Chinese practices, but was first systemized by the early Edo period monk Tenkai. It is also the origin of Tōkyūjutsu.
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Tengenjutsu (fortune telling) Wikipedia(Text) CC BY-SA