From the ancient Sun cross to the Yinyang, the circle is a ubiquitous and resonant symbol. But what does it evoke to you? What significance or insignificance to you find in such a common symbol? Enjoy this video, which contains a definition of the circle as a symbol, from Juan Eduardo Cirlot’s 1958 work, “A Dictionary of Symbols”: “Circle — At times it is synonymous with the circumference, just as the circumference is often equated with circular movement. But although its general meaning embraces both aspects, there are are some further details which it is important to emphasize. The circle or disk is, very frequently, an emblem of the sun (and indisputably so when it is surrounded by rays). It also bears a certain relationship to the number ten (symbolizing the return to unity from multiplicity) when it comes to stand for heaven and perfection and sometimes eternity as well. There are profound psychological implications in this particular concept of perfection. As Jung observes, the square, representing the lowest of the composite factorial numbers, symbolizes the pluralist state of man who is not achieve inner unity (perfection) whilst the circle would correspond to this ultimate state of Oneness. The Octagon is the intermediate state between the square and the circle. Representations of the relationship between the circle and the square are very common in the universal and spiritual world of morphology, notably in the mandalas of India and Tibet and in Chinese emblems. Indeed, according to Chochod, in China, activity, or the masculine principle (Yang), is represented by the white circle (depicting heaven), whereas passivity, the feminine principal (Yin) is denoted by a black square (portraying earth). The white circle stands for energy and celestial influences and the black square for telluric forces. The interaction implicit in dualism is represented by the famous symbol of the Yang-Yin, a circle divided into two equal sections by a sigmoid line across the diameter, the white section (Yang) having a black spot within it, and the black (Yin) a white spot. These two spots signify that there is always something of the feminine in the masculine and something of the masculine in the feminine. The sigmoid line is a symbol of the movement of communication and serve the purpose of implying the idea of rotation, so imparting a dynamic and complementary character to this bipartite symbol.