linguistic:paraphrasing, stylistic:tone
Late Antiquity

The origins of Western esotericism are in the Hellenistic Eastern Mediterranean, then part of the Roman Empire, during Late Antiquity. This was a milieu that mixed religious and intellectual traditions from Greece, Egypt, the Levant, Babylon, and Persia—in which globalisation, urbanisation, and multiculturalism were bringing about socio-cultural change.

One component of this was Hermeticism, an Egyptian Hellenistic school of thought that takes its name from the legendary Egyptian wise man, Hermes Trismegistus. In the 2nd and 3rd centuries, a number of texts attributed to Hermes Trismegistus appeared, including the Corpus Hermeticum, Asclepius, and The Discourse on the Eighth and Ninth. Some still debate whether Hermeticism was a purely literary phenomenon or had communities of practitioners who acted on these ideas, but it has been established that these texts discuss the true nature of God, emphasising that humans must transcend rational thought and worldly desires to find salvation and be reborn into a spiritual body of immaterial light, thereby achieving spiritual unity with divinity.

Another tradition of esoteric thought in Late Antiquity was Gnosticism. Various Gnostic sects existed, and they broadly believed that the divine light had been imprisoned within the material world by a malevolent entity known as the Demiurge, who was served by demonic helpers, the Archons. It was the Gnostic belief that people, who were imbued with the divine light, should seek to attain gnosis and thus escape from the world of matter and rejoin the divine source.

A third form of esotericism in Late Antiquity was Neoplatonism, a school of thought influenced by the ideas of the philosopher Plato. Advocated by such figures as Plotinus, Porphyry, Iamblichus, and Proclus, Neoplatonism held that the human soul had fallen from its divine origins into the material world, but that it could progress, through a number of hierarchical spheres of being, to return to its divine origins once more. The later Neoplatonists performed theurgy, a ritual practice attested in such sources as the Chaldean Oracles. Scholars are still unsure of precisely what theurgy involved, but know it involved a practice designed to make gods appear, who could then raise the theurgist's mind to the reality of the divine.