Further, the fact that persons such as Kugyo FUJIWARA no Morosuke and the Chinese classic scholar Kiyoyuki MIYOSHI, who did not belong to Onmyoryo, but who had mastered astronomy, Onmyo, the art of divination, and the art of the calendar, shows that the national secret policy prescribed in the ritsuryo whereby the arts of Onmyo were prohibited from being taken out of Onmyoryo, had failed by this time.
あわせて、公卿の藤原師輔や漢文学者の三善清行など、陰陽寮の外にある人物が天文・陰陽・易学・暦学を習得していたということ自体、律令に定めた陰陽諸道の陰陽寮門外不出の国家機密政策はこの頃にはすでに実質的に破綻していたことを示している。