The Proceedings of Government in the Different Months is a chapter in the Book of Rites, a Confucian classic that outlines the principles of proper conduct, social order, and governance. It describes the ideal seasonal activities for each month, offering guidance on how rulers, officials, and common people should align their actions with the rhythms of nature and cosmic principles.

The 24 Solar Terms (二十四气) and 72 Solar Periods (七十二候) are traditional components of the Chinese lunisolar calendar. They reflect the annual climatic changes and natural phenomena observed in agricultural societies.

The 24 Directions (or 24 Mountains) is is an ancient Chinese geomantic (feng shui compass) concept used determine spatial orientations. It integrates principles from Chinese geography and astrology to guide architectural design, site selection, and other spatial arrangements.

Na-Jia (纳甲), meaning “Received first Heavenly Stem”, is an ancient Chinese metaphysical system, particularly in I Ching studies, used to correlating the Heavenly Stems (天干) and Earthly Branches (地支) with the Eight Trigrams (八卦) and 64 Hexagrams (重卦) to analyze and predict natural and human events.

Na-Yin (纳音), meaning “Received Sounds”, is an ancient Chinese metaphysical system used to correlating the Heavenly Stems (天干) and Earthly Branches (地支) to one of the Five Phases (五行) and specific symbolic Key (音), which is a combination of Tonic (律) and Mode (调)

The Sexagenary Cycle, also known as the Sixty Jiazi (六十甲子), is an ancient Chinese calendrical system used to represent the passage of time. It is a combination of Heavenly Stems (天干) and Earthly Branches (地支), forming a 60 cycle widely used. Each year, month, day, hour or other time unit is assigned a pair from the cycle.

The Five Phases (五行) is a fundamental concept in ancient Chinese cosmology, philosophy, and metaphysics, describing the dynamic relationships and interactions between five elemental movements, Wood (木), Fire (火), Earth (土), Metal (金), and Water (水).

The Chinese Zodiac (生肖) is a traditional classification system based on a 12-year cycle, with each year associated with one of 12 animals. It is used to represent years in the luni-solar calendar and is deeply rooted in Chinese culture.

The 28 Mansions (二十八宿) are the regions near the ecliptic and the lunar path, where the Sun, the Moon and the planets pass by. Seven Mansions form one Symbol. The Four Symbols are the Azure Dragon, the Vermilion Bird, the White Tiger and the Murky Warrior.

The Chinese Calendar, also known as the Agricultural Calendar or Traditional Calendar, is a lunisolar calendar used in China for centuries. It plays a significant role in Chinese culture, governing traditional festivals, agricultural activities, and astrological practices.