- They are opposites
- They are complementary
- They mutually transform (e.g. when yin reaches its maximum, it starts going towards the minimum)
- They are in a dynamic equilibrium (e.g. when yin grows, yang shrinks, and vice versa)
Different people also sway different amounts. This might be understood to be stability; the less you sway the more stable you are. Meaning that if we draw a bell curve around the average, the smaller the variance is, the more stable the person. The curve, of course, may not be a bell curve. Personally I am very often a very rational person, but that does not mean that I am not emotional as well. This year has been very emotional for me, and although extremely rational individuals often scoff at the uncontrollable nature of emotion, one should still not underestimate the power of emotion. This I've learned the hard way.
The dualistic nature of the situation, however, need not be a weakness or a problem. In fact, I think that it is in fact a strength, if one is able to tap into it. Emotion enables passion, and life without passion is not a life worth living. And passion, much like fire, must be kept a steady eye on as an uncontrolled fire will turn into a forest fire and consume everything. Similar to how passion will consume the individual. So reason, then, is the cool opposite of the fire-y emotion and keeps emotion in check. They are in a symbiotic relationship, as one without the other is a dead end. If emotion without reason is a forest fire, reason without emotion is a robot. And a person sways between the two, striving to find the right balance.
But ultimately, both emotion and reason are still meant to be subordinate to the individual. Much like neither fire nor water can ever be truly controlled, neither can emotion and reason. But they should be harnessed and the energy they create should, in the end, be used towards happiness. I am sure that this is nothing new, but as seems to be the case with me, I have to learn everything myself--and preferrably the hard way--before I can truly grasp it.