The yinyang dichotomy is one of the most powerful of Chinese designs, representing cosmic duality. Within the circle, which represents unified, undifferentiated oneness, are two similarly shaped interlocking units representing duality. These two are assigned to represent certain contrasting elements - male/female, dark/light, and so forth. Each contains an element of the other, demonstrating that they are inextricably linked. In the symbol, everything is balanced, representing the universal harmony when everything finds its proper place in the universal scheme. Yinyang, therefore, also acts as a symbol of enlightened harmony.
See the imperial yellow glass snuff bottle from the first part of this collection, sold in these Rooms, 21 December 2009, lot 140