Digital art: mental balance

A story about balance: One day, Buddha was standing by a river and a boat was passing by where there was a father and a son... The boy was playing an instrument and the father told him not to play so hard that the strings would break, not to play so slowly that the sound could not be heard. ..This sentence had a deep impact on Buddha's life and according to him, the most important thing in every human's life is to achieve mental balance