 He is certified as a "Kokusai Fukyōshi" ("Official Foreign Representative") by Sōtō-shū Shûmusôchô, that is, the Japanese Sōtō Zen sect.Tenshin "Rōshi" has trained thoroughly in "kōan" and "shikantaza" as well as other more recently developed forms of practice.In addition to his work in the US, he returns to the UK annually to lead a "sesshin" near Liverpool.