The Yin Yang symbol stands for balance and can be used for Equanimity, one of the four Buddhist limitless states of mind which is a very useful attitude to cultivate. I, personally, can be easily distracted from this state of mind by events and thoughts. That is why I would like to further cultivate this. Another way that equanimity can be thought of is as balance, poise. I am happy to have a symbol to represent this. The gong represents compassion, and I already have this whether people know it or not.
It is sometimes easy to see that I do not have equanimity, though sometimes I do have it. I have it when I am in a state of “flow”. This is another useful asset, when going into the shadows, in order to come back more complete.