Qi Men Dun Jia is a complex system of Chinese astrology that originated over 2,000 years ago. The name "Qi Men Dun Jia" literally translates to " Hidden Stem Moving Part". It is based on the principles of the I Ching, the Five Elements, and the Bagua diagram.
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.pdf
Most Qi Men Dun Jia PDF guides provide a structured approach to "borrowing luck" from the environment: Qi Men Dun Jia is a complex system