light as a feather
Light as a feather is a Chinese idiom, pronounced Q ī ngru ò h ó NGM á o, lighter than the feather of a wild goose. Metaphors are worthless. The same as "lighter than a feather".
source
"The book of Jin, biography of huangfumi:" light as a feather, heavy as mud, damage is not, the deeper the measurement
usage
As a predicate, object, complement; of no value
light as a feather
one 's behavior is different , as if he were not the same person - pàn ruò liǎng rén
strike out a new line for oneself - zì chéng yī jiā