TRIANGLE. A symbol of Deity.
This symbolism is found in many of the ancient religions.
Among the Egyptians it was a symbol of universal nature, or of the protection of the world by the male and female energies of creation.
TRIANGLE, RADIATED. A triangle placed within a circle of rays. In Christian art it is a symbol of God; then the rays are called a glory. When they surround the triangle in the form of a circle, the triangle is a symbol of the glory of God. When the rays emanate from the centre of the triangle, it is a symbol of divine light. This is the true form of the masonic radiated triangle.
TRILITERAL NAME. This is the word AUM, which is the ineffable name of God among the Hindoos, and symbolizes the three manifestations of the Brahminical supreme god, Brahma, Siva, and Vishnu. It was never to be pronounced aloud, and was analogous to the sacred tetragrammaton of the Jews.
TROWEL. One of the working tools of a Master Mason. It is a symbol of brotherly love.
TRUTH. It was not always taught publicly by the ancient philosophers to the people.
The search for it is the object of Freemasonry. It is never found on earth, but a substitute for it is provided.
TUAPHOLL. A term used by the Druids to designate an unhallowed circumambulation around the sacred cairn, or altar, the movement being against the sun, that is, from west to east by the north, the cairn being on the left hand of the circumambulator.
TUBAL CAIN. Of the various etymologies of this name, only one is given in the text; but most of the others in some way identify him with Vulcan. Wellsford (Mithridates Minor p. 4) gives a singular etymology, deriving the name of the Hebrew patriarch from the definite article ה converted into ת, or T and Baal, "Lord," with the Arabic kayn, "a blacksmith," so that the word would then signify "the lord of the blacksmiths." Masonic writers have, however, generally adopted the more usual derivation of Cain, from a word signifying possession; and Oliver descants on Tubal Cain as a symbol of worldly possessions. As to the identity of Vulcan with Tubal Cain, we may learn something from the definition of the offices of the former, as given by Diodorus Siculus: "Vulcan was the first founder of works in iron, brass, gold, silver, and all fusible metals; and he taught the uses to which fire can be applied in the arts." See Genesis: "Tubal Cain, an instructor of every artificer in brass and iron."