Qimen Dunjia
| Qimen Dunjia | |||||||
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| Traditional Chinese | 奇門遁甲 | ||||||
| Simplified Chinese | 奇门遁甲 | ||||||
| Literal meaning | Mysterious gates, hidden Jia | ||||||
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Qimen Dunjia (simplified Chinese: 奇门遁甲; traditional Chinese: 奇門遁甲; pinyin: qíméndùnjiǎ; lit. 'mysterious gates', 'hidden Jia') is an ancient Chinese divination and cosmological calculation system. It is one of the Three Styles (三式; sānshì; 'three methods') of Chinese divinatory arts, alongside Da Liu Ren and Tai Yi Shen Shu. Originally developed in the context of military strategy and statecraft, the system integrates principles from the Yijing (Book of Changes), yinyang cosmology, the Five Phases, the Heavenly Stems and Earthly Branches, and astronomical observation into a structured analytical framework. Qimen Dunjia remains in active use in mainland China, Taiwan, Hong Kong, Singapore, Malaysia, and among the Chinese diaspora in Southeast Asia.