1. Feather refers to the hair growing on the surface of birds, which has the functions of protecting the body, keeping body temperature and helping to fly. Therefore, in natural symbolism, feathers first have the meaning of symbolizing the whole with parts, that is, symbolizing birds. When feathers fell in the sky, the ancients always thought that birds just passed in the sky above them.
In many legends, people believe that feathers (wings) are the reason why birds can fly, so people make feather coats in the hope that they can fly in the sky like birds. Therefore, feathers are used to symbolize "flying" and "sunshine", and then the meaning of "light" is extended.