Also interesting is how yin and yang are aspects that we experience of a thing while not being inherent objective qualities of that thing. It can be useful to think of it as the energy currently passing through the thing.

Also, also I have found that using the word "receptive" tends to help make balancing yin more helpful than the term "passive."

Also, also, also of interest, in Japanese the word 陽子 means proton. The etymology of this is [yang][child/small bit]. For the same historical reasons that we don't use the word negatron, electron is called 電子, [electric][child/small bit], rather than 陰子 [yin][child/small bit]. Besides meaning yang & yin, though, these words also mean sunny & shady.

You doing a post on the five Chinese elements, next? Fascinating stuff, that.