Why do butterflies dance for flies and insects, and why do willow branches droop for vegetation? what's the meaning

It means not to care what others think. Why do butterflies dance for flies and insects, and why do willow branches droop for vegetation? It is better to live a limited edition of life than to spend your mind on pleasing people. In life, it is better to be sober alone than to cater to the secular, and not to care too much about other people's opinions.