I have never considered balance to specifically be an even split. Rather, as a childhood tree climber and an adult experimental cook, I think of balance as “the proper distribution of opposing factors to avoid an undesirable outcome, or achieve a desirable outcome”.
Example a, the application of butter and a blend of spices to bland white rice. The undesirable outcomes are “the rice remains bland” or “the rice is over spiced and tastes horrible”. To achieve the desired out come the the portions of rice, butter and seasons much each be of the suitable portions to balance each other out and achieve the desired result of a satisfying side dish.
In seeking to balance emotions and logic, you should not seek an even distribution, but instead try for an effective mix of the two that suits the situation at hand.