Kinh giải nội về Tam Thiên (Thanh Vi, Vũ Dư, Đại Xích) và chính thống Thiên Sư đạo. Giải thích vũ trụ luận, giáo pháp và quan hệ với các đạo khác, là kinh điển Chính Nhất quan trọng ngoài Minh Uy Lục.
Ứng dụng: Hiểu giáo nghĩa Tam Thiên, lịch sử Thiên Sư đạo
南朝劉宋天師道徐氏撰，二卷。以「三天」正法對抗「六天」故氣：太上自虛無化生，布氣降世；漢安元年老君於蜀授張道陵為「太玄都正一平氣三天法師」，立正一盟威、二十四治。批判世人畏邪鬼不畏真道、雜祀巫鬼、黃赤濁亂。主張安靜虛無、恬然無為以體道，道德教化與天師教團組織並重，確立新出老君—三天正法敘事。
⚡ Ứng dụng: 闡明天師道正統譜系與三天教義，用於教內勸誡、辨別正邪祭祀與正一授籙論述。
🔗 Liên quan: 老君音誦誡經；女青鬼律；正一法文天師教戒科經
Sacred history is a succession of covenantal regimes; the present 'Three Heavens' order supersedes older, polluted dispensations. The text proves orthodoxy by narrative: correct gods, calendars, and sexual-ritual bans define the true Way against archaic or rival practices. Legitimacy is historical-legal, not merely mystical.
1) In BaZi lineage work, distinguish 'old fate patterns' (inherited cult/family taboos) from current correctable code. 2) When clients practice mixed systems, apply Three Heavens logic: one primary covenant, clear bans. 3) Use chart clashes as signs of dual administration—resolve by choosing one ethical-ritual center. 4) Teach that changing luck requires changing 'regime' of habits, not only charms. 5) Date major life reforms to clear seasonal nodes as miniature 'new covenant' moments.
More historiographic than pure ritual manuals; it argues by cosmic politics of eras. Unlike 老君音誦誡經's focus on chanted precepts, it supplies the mythic constitution behind the reform. Compared with geographic immortality texts (十洲記, 洞天福地), it maps time-regimes rather than sacred space.