Idioms with folds and lines

Snake hunting? ? Dou: It is as tortuous as the arrangement of the Big Dipper. Bend like the Big Dipper and meander like a snake. Describe the winding road.

Flying geese fold their wings? Flying Goose: refers to the orderly queue of geese in Qi Fei, which is extended to brothers. Metaphor is the death of a brother.