Tian in the context of "Mozi"

Confucianism, also known as Ruism or Ru classicism, is a system of thought and behavior originating in ancient China, and is variously described as a tradition, philosophy, religion, theory of government, or way of life. Founded by Confucius in the Hundred Schools of Thought era (c. 500 BCE), Confucianism integrates philosophy, ethics, and social governance, with a core focus on virtue, social harmony, and familial responsibility.

Confucianism emphasizes virtue through self-cultivation and communal effort. Key virtues include ren (仁, "benevolence"), yi (義; "righteousness"), li (禮; "propriety"), zhi (智; "wisdom"), and xin (信; "sincerity"). These values, deeply tied to the notion of tian (天; "Heaven"), present a worldview where human relationships and social order are manifestations of sacred moral principles. While Confucianism does not emphasize an omnipotent deity, it upholds tian as a transcendent moral order.

The Mandate of Heaven (Chinese: 天命; pinyin: Tiānmìng; Wade–Giles: T'ien-ming; lit. 'Heaven's command') is a Chinese political doctrine that was used in Ancient China and Imperial China to legitimize the rule of the king or emperor of China. According to this doctrine, Heaven (天, Tian) bestows its mandate on a virtuous ruler, called the Son of Heaven (天子, Tianzi), who is the supreme universal monarch that will rule the world (天下, Tianxia; "[all] under heaven"). If a ruler was overthrown, this was interpreted as an indication that the ruler and his dynasty were unworthy and had lost the Mandate. It was also a common belief that natural disasters such as famine and flood were divine retributions bearing signs of Heaven's displeasure with the ruler, so there would often be revolts following major disasters as the people saw these calamities as signs that the Mandate of Heaven had been withdrawn.

The Mandate of Heaven does not require a legitimate ruler to be of noble birth. Chinese dynasties such as the Han and Ming were founded by men of common origins, but they were seen as having succeeded because they had gained the Mandate of Heaven. Retaining the mandate is contingent on the just and able performance of the rulers and their heirs.

In traditional Confucian philosophy, li is an ethical concept broadly translatable as 'rite'. According to Wing-tsit Chan, li originally referred to religious sacrifices, but has come to mean 'ritual' in a broad sense, with possible translations including 'ceremony', 'ritual', 'decorum', 'propriety', and 'good form'. Hu Shih notes that li has "even been equated with natural law" by some western scholars. In Chinese cosmology, li refers to rites through which human agency participates in the larger order of the universe. One of the most common definitions of 'rite' is a performance transforming the invisible into the visible: through the performance of rites at appropriate occasions, humans make the underlying order visible. Correct ritual practice focuses and orders the social world in correspondence with the terrestrial and celestial worlds, keeping all three in harmony.

Throughout the Sinosphere, li was thought of as the abstract force that made government possible—along with the Mandate of Heaven it metaphysically combined with—and it ensured "worldly authority" would bestow itself onto competent rulers. The effect of ritual has been described as "centering", and was among the duties of the emperor, who was called the 'Son of Heaven'. However, rites were performed by all those involved in the affairs of state. Rites also involve ancestral and life-cycle dimensions. Daoists who conducted the rites of local gods as a centering of the forces of exemplary history, of liturgical service, of the correct conduct of human relations, and of the arts of divination such as the earliest of all Chinese classics—the I Ching—joining textual learning to bodily practices for harmonization of exogenous and endogenous origins of energy qi for a longer healthier life.

Tianxia (Chinese: 天下; pinyin: Tiānxià; lit. '[everything] under Heaven') is a Chinese term for a historical Chinese cultural concept that denoted either the entire geographical world or the metaphysical realm of mortals, and later became associated with political sovereignty. In ancient China and imperial China, tianxia denoted the lands, space, and area divinely appointed to the Chinese sovereign by universal and well-defined principles of order. The center of this land was directly apportioned to the Chinese court, forming the center of a world view that centered on the Chinese court and went concentrically outward to major and minor officials and then the common subjects, tributary states, and finally ending with fringe barbarians.

The center of this world view was not exclusionary in nature, and outer groups, such as ethnic minorities and foreign people, who accepted the mandate of the Chinese Emperor were themselves received and included into the Chinese tianxia. In classical Chinese political thought, the "Son of Heaven", having received the Mandate of Heaven, would nominally be the ruler of the entire world. Although in practice there would be areas of the known world which were not under the control of the Chinese monarch, in Chinese political theory the rulers of those areas derived their power from the Chinese monarch.

The Temple of Heaven (simplified Chinese: 天坛; traditional Chinese: 天壇; pinyin: Tiāntán) is a complex of imperial religious Confucian buildings situated in the southeastern part of central Beijing. The complex was visited by the Emperors of the Ming and Qing dynasties for annual ceremonies of prayer to Heaven for a good harvest. The Temple of Heaven was inscribed as a World Heritage site in 1998 and was described as "a masterpiece of architecture and landscape design which simply and graphically illustrates a cosmogony of great importance for the evolution of one of the world's great civilizations..." as the "symbolic layout and design of the Temple of Heaven had a profound influence on architecture and planning in the Far East over many centuries."

The Wǔfāng Shàngdì (Chinese: 五方上帝 "Five Regions' Highest Deities" or "Highest Deities of the Five Regions"), or simply Wǔdì (五帝; "Five Deities") or Wǔshén (五神; "Five Gods") are, in Chinese canonical texts and common Chinese religion, the fivefold manifestation of the supreme God of Heaven (天; Tiān, or equivalently 上帝; Shàngdì). This theology dates back at least to the Shang dynasty. Described as the "five changeable faces of Heaven", they represent Heaven's cosmic activity which shapes worlds as 壇; tán, "altars", imitating its order which is visible in the starry vault, the north celestial pole and its spinning constellations. The Five Deities themselves represent these constellations. In accordance with the Three Powers (三才; Sāncái) they have a celestial, a terrestrial and a chthonic form. The Han Chinese identify themselves as the descendants of the Red and Yellow Deities.

They are associated with the five colors, the five phases of the continuous creation (五行; Wuxing), the five classical planets of the Solar System and the five constellations rotating around the celestial pole, the five sacred mountains and five directions of space (their terrestrial form), and the five Dragon Gods (龙神; Lóngshén) who represent their mounts, that is to say the material forces they preside over (their chthonic form). They have also been defined simply as five special forms of the worship of the God of Heaven, different "accesses" or perspectives, suitable for different situations, to serve Heaven.

In the study of comparative religion, the East Asian religions, form a subset of the Eastern religions which originated in East Asia.

This group includes Chinese religion overall, which further includes ancestor veneration, Chinese folk religion, Confucianism, Taoism and popular salvationist organisations (such as Yiguandao and Weixinism), as well as elements drawn from Mahayana Buddhism that form the core of Chinese and East Asian Buddhism at large. The group also includes Shinto and Tenrikyo of Japan, and Korean Shamanism, all of which combine shamanistic elements and indigenous ancestral worship with various influences from Chinese religions. Chinese salvationist religions have influenced the rise of Japanese new religions such Tenriism and Korean Jeungsanism; as these new religious movements draw upon indigenous traditions but are heavily influenced by Chinese philosophy and theology. All these religious traditions generally share core concepts of spirituality, divinity and world order, including Tao ('way') and Tian ('heaven').