Seisan Seisan The karate kata (alternate names Sesan, Seishan, Jusan, Hangetsu) literally means '13'. Some people refer to the kata as '13 Hands', '13 Fists', '13 Techniques', '13 Steps' or even '13 killing positions'. However, these names have no historical basis. Seisan is thought to be one of the oldest kata, being quite spread among other Nahate schools. Shito-ryu has its own version and different versions are now practised even in Shuri-te derivatives like Shotokan (called Hangetsu) and in Wado-ryu (called Seishan). Isshin-ryū also adopted this kata. This kata is also practiced in Korean styles such as Tang Soo Do and
Tachikawa-ryu in so called "black" magic, the school was frowned upon by Orthodox Shingon leaders (who performed non-sexual right hand Tantra rituals), and its monks were frequently sent into exile. The monk Yūkai (1345–1416) is generally credited with taking the lead on extirpating the Tachikawa-ryu school from Shingon. Since most Tachikawa-ryu texts were destroyed much of its history and teachings must be reconstructed. The institutes who do have Tachikawa-ryu texts and information pertaining to the school are generally unsympathetic and hostile towards Tachikawa-ryu ideologies and therefore refuse to lend any sort of help to the matter.(Sanford 1991) The school was founded