【摘要】 “天门地户”是《黄帝内经》五运六气理论的基础概念,学界对其基本内涵尚无全面清晰的阐释。本文从古代天文观象和授时角度,发现天门和地户与古人观测二十八星宿之东方苍龙及太阳视运动进行授时密切相关。并进一步阐明天门和地户所指示的时间,从早期参照苍龙星象为春分和秋分,到后期直接观测太阳视运动为夏至和冬至。为运气理论的客观性和科学性提供基本依据。更多还原

【Abstract】 The concepts of “Heavenly Gate”(Tianmen) and “Earthly Door”(Dihu) are foundational to the Five Circuits and Six Qi(Yunqi) theory in Inner Canon of Huangdi. However,their precise connotations remain incompletely elucidated in academia. This study explores ancient astronomical observations and timekeeping practices,revealing that Tianmen and Dihu are closely tied to the ancient Chinese observation of the twenty-eight lunar mansions—specifically the Azure Dragon of the East(Canglong)—and the apparent motion of the Sun for calendrical regulation. Furthermore,the temporal markers represented by Tianmen and Dihu evolved from early references to the Spring Equinox and Autumn Equinox(based on Canglong’s celestial phenomena) to later direct observations of the Summer Solstice and Winter Solstice(determined by the Sun’s apparent movement). This research provides empirical support for the objectivity and scientific validity of Yunqi theory.更多还原