What do you think is the significance of balance in aesthetics?

I prefer to call it "coordination" or "harmony". Balance is not the same as equilibrium. It is the reasonable existence of all parts to a certain extent. Only in this degree can the whole reflect the atmosphere of beauty, and any part imbalance will affect the effect. The balance in aesthetics is the aesthetics of dimension and contrast. For any definition of beauty, balance is the watershed to distinguish beauty from ugliness.