Few not so common occult symbols

Triangle of Art (Solomonic triangle, Triangle of Evocation)

The triangle of art represents the protected space outside the magic circle, into which spirits are compelled to appear in Solomonic ritual magic. Typically, the central circle is inscribed with the sigil (seal) of the spirit to be invoked. The usual form is of a triangle, circumscribed with various words of power, containing an inner, blackened circle. The purpose of the triangle is to contain the manifested entity. In some cases, the triangle is created as a physical object; sometimes, the central circle is replaced with a black scrying mirror.

Here is one of the most frequent representations




Hieroglyphic Monad (Monas Hieroglyphica)
The ‘Monas Hieroglphica‘ (one glyph) is an emblem proposed originally by Athanasius Kircher and expanded on by Dr. John Dee for his sixteenth century treatise on the creation of a mystical symbolic language of the same name. The figure is based on the Egyptian Ankh and contains symbols of the seven planets/alchemical metals: The sign of Aries, the cardinal sign of the zodiac: A cross representing the four primal elements: The sign of Sol, the sun, and alchemical gold: A lunar crescent, alchemical silver: The symbol appears in other places, notably, the “Speculum Veritatis,” or Mirror of truth, an alchemical text.

This picture is a faximile of John Dee's original work and as such is shown in proportions



Ouroboros

Ouroboros is a greek word, and means “tail swallower.” The ouroboros is usually depicted in the form of a snake swallowing its tail, and is usually circular, although it is sometimes depicted in a lemniscate shape. It originated in Egypt as a symbol of the sun, and represented the travels of the sun disk. In Gnosticism, it was related to the solar God Abraxas, and signified eternity and the soul of the world.