Qi Men Dun Jia (奇門遁甲), or "Mystical Doors Escaping Techniques," is an ancient Chinese metaphysical system historically used for strategic military decision-making and now applied to business and personal life. It utilizes a 3x3 grid to analyze four interacting layers—Nine Stars, Eight Doors, Eight Deities, and Heavenly/Earthly Stems—to identify optimal timing and directions. For a comprehensive introduction, see the Introduction to Qi Men Dun Jia (PDF) by Feng Shui Hacks.
Qi Men Dun Jia (奇門遁甲) is a Chinese metaphysical system combining astronomy, calendrical science, and symbolic cosmology for divination, strategy, and timing. Originating in the Warring States and Han periods and formalized during later dynasties, it uses a 9-palace grid, heavenly stems, earthly branches, nine stars, eight gates, and nine deities to generate time-space charts for answering questions about outcomes, decisions, and auspicious timing. This paper summarizes its history, core structure, calculation method, interpretive principles, and contemporary applications, and notes limitations and areas for further research. Qi Men Dun Jia.pdf
Qi Men Dun Jia (QMDJ) is an ancient Chinese metaphysical discipline that combines astrology, numerology, and mysticism to provide insights into an individual's destiny, personality, and life events. This report provides an overview of the QMDJ system and its applications. Qi Men Dun Jia (奇門遁甲), or "Mystical Doors
The system synthesizes several distinct metaphysical concepts: Qi Men Dun Jia (QMDJ) is an ancient