Section to Add 

I would like someone to add something on this, but I don't want to because I don't have proper sources and I wouldn't know where to add it.

My history teacher explained the meaning of the yin yang symbol to me like this: At the height of yin their you find yang. At the height of yang - you find yin. This is the meaning of the two dots in the symbol. They are supposed to be the most important part. A bit of yin at the strongest point of yang. I think the point is that they are in-seperable. Could someone who understands this better please add this? War