Those who are tense on a high wire are likely to fall. Those who are relaxed can simply let balance be. This is a lesson that I learned from Tai Chi. I was having difficulty with a segment which involved standing on one foot, and the instructor said that he was going to say something strange, and told me that the way to accomplish standing on one foot was to simply relax. The more that I try to be balanced, the more that the muscles tense, and the harder it is to achieve or remain in balance.
Balance exists in relaxation and acceptance.
Another comparison is being in the water and trying to float. Those that struggle wildly to stay above water rarely do, while those who simply relax and let themselves float, do. Letting equilibrium be is the way to move towards balance. And yet once we reach equilibrium, it is never permanent. Seek persistent dis-equilibrium.