To go with the flow. To not worry, be happy. The only constant, guaranteed thing in life is constant change. People must learn to adapt to change in an efficient, gentle manner, and not let petty people or events annoy or disturb them. Human relationships are a nuisance, especially relationships with family members, and especially relationships with one's parents.
Siblings can be equally annoying.
The wisest person just goes with the flow, and smiles. Influenced Chinese landscape painting. Each part of the diagram represents something in Taoist thought. A journey of a thousand miles begins with a single step.