Translated from Japanese Ten means heaven. Ten is a part of a triangle proportion heaven (ten), person (hito) and earth (chi).
The kata Ten-i
Ten-i no kata is a kata, which was used as basic kata during the experimental period of Genseiryu. To mature the style of Genseiryu, it was decided to discard the kata, together with Chi-i and Jin-i. These three kata eventually were 'reformed' as hokei according to Taido standards, and tensei no hokei was created which was more suited to the initial principles of body movements. Certain techniques of the ten-i, chi-i and jin-i can be seen in tensei, chisei and jinsei no hokei.