The human body is equipped with two shoulders — left and right — and a god resides on each one. One of the gods is called Dōmyō-jin and the other is Dōshō-jin. The King of the Brahma Heaven, Indra, Sun Deity and Moon Deity cause these two gods to protect us from the time of our conception in the womb to the end of our lives, by sticking near us like our shadow and eyes. They report to the heavenly beings about our misdeeds and virtuous actions without fail. This is preached in the Flower Garland Sūtra, which is expounded by Grand Master T’ien-t’ai in his Great Concentration and Insight, fascicle 8.
Shijō Kingo-dono Nyōbō Gohenji, A Reply to the Wife of Lord Shijō Kingo, Writings of Nichiren Shōnin, Volume 7, Followers II, Pages 121-122