"Sanyang" refers to the divination of "stem, ridge and root", also known as the three auspicious doors of "longevity, opening and rest" and the stars of "one white, six white and eight white". The so-called "Sanyang" and "Sanji" all refer to this.
"Six Repairs" refers to "Xun, Li, Kun, Zhen, Dui and Zhong Gong". Zhong Gong's recluse is also called "three blessings and five evils", so Qingnang Haijiao Sutra is sometimes called "six practices" and sometimes "five evils", which is the reason.