ABE no Seimei participated in Kentoshi studying under伯道上人 in the home of Onmyo 城刑山 and after returning to Japan, he developed a unique Onmyodo that was a specialized esoteric occult art.
遣唐使に参加して陰陽の本場城刑山で伯道上人に学び、帰国すると特殊化・秘伝秘術化した独特の陰陽道を築き上げた。