Cổ điển lý khí phái, nền tảng cho huyền không và tam hợp. Nói về âm dương, ngũ hành, thiên địa giao cảm trong việc lập hướng. Ngắn gọn nhưng ảnh hưởng sâu đến các phái sau.
Ứng dụng: Nền tảng lý luận khi học lý khí, huyền không, lập hướng mộ/nhà
托名秦末汉初黄石公（赤松子述义），风水哲学总纲，非技术细则。分上中下：化始、化机、化成。以河洛数、阴阳奇偶、五星五行立论：天有五星，地有五行；气行于地，形丽于天；因形察气，以立人纪。强调阴阳相见、雌雄交媾、上下相须而成一体（化机）。为后世青囊系（序、奥语、天玉）之形上根基，理气与形法皆从此出。
⚡ Ứng dụng: 立论风水总纲：先明天地气形相应与阴阳交媾，再入具体龙穴砂水操作。
🔗 Liên quan: 青囊序；青囊奥语；葬书
It proves that fortune is not random favor of heaven but the lawful product of how qi is received, stored, and discharged by form. Cosmic pattern (理) only becomes human destiny when terrestrial vessels (形) can hold and transmit it; without a container, pure principle is sterile.
1. Read a BaZi chart first as a qi budget (strong/weak, floating/rooted), then ask which landforms would supply or drain that budget. 2. Prefer sites that enclose and slow qi (embrace) over open, wind-scoured ground. 3. Match mountain/water roles to chart needs: support for weak Day Master, controlled outlet for over-strong charts. 4. Treat burial and residence as long-term qi contracts—evaluate multi-generational continuity, not single-year peaks. 5. Reject cosmetic 'auspicious directions' that ignore actual drainage and enclosure.
Unlike 葬经, which centers on burial as filial and corporeal continuity, 青囊经 elevates the abstract physics of Yin-Yang and the Three Powers into a universal cosmology of form. Unlike later 理气 schools that can float free of terrain, it insists principle without vessel is empty—form is the proof engine.