In this Eastern tradition the balance is almost never 50/50. Not really black and white but infiinite shades of grey tend to paint our reality. More often than not, the shadows are enhanced by the light, and the light by the shadow.
The middle may not be in the middle. 60/40 tends to be the natural balance before man interfers, or more accurately not quite 60/40 but almost... just a bit off (or is that less accurate? Certainly it's more vague). This vagueness is one characteristic of In'yodo as well. Mystery in the shadow.