True name

A true name is a name of a thing or being that expresses, or is somehow identical to, its true nature. The notion that language, or some specific sacred language, refers to things by their true names has been central to philosophical study as well as various traditions of magic, religious invocation and mysticism (mantras) since antiquity.

Socrates in Cratylus considers, without taking a position, the possibility whether names are "conventional" or "natural", that is, whether language is a system of arbitrary signs or whether words have an intrinsic relation to the things they signify.

The true name of the Egyptian sun god Ra was revealed to Isis through an elaborate trick. This gave Isis complete power over Ra and allowed her to put her son Horus on the throne.

Hellenistic Judaism emphasized the divine nature of logos, later adopted by the Gospel of John. The true name of God plays a central role in Kabbalism (see Gematria, Temurah, YHWH [the tetragrammaton]) and to some extent in Sufism (see 100th name of God). The ancient Jews considered God's true name so potent that its invocation conferred upon the speaker tremendous power over His creations. To prevent abuse of this power, as well as to avoid blasphemy, the name of God was always taboo, and increasingly disused so that by the time of Jesus their High Priest was supposedly the only individual who spoke it aloud — and then only in the Holy of Holies upon the Day of Atonement.

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