What does it mean to watch the moon from the other side and listen to the flute from the other side?

Mr. Xie, a famous composer, once said, "Look at the moon across the bank and listen to the flute across the bank." It's about appreciating beauty, and you need to look up from downstairs. Beauty leans against the bar, and the composition is the best. When listening to the flute, you must leave enough distance and space to really appreciate it. Beauty needs a moderate distance, because jealousy is not allowed and it is the most attractive to talents.