In literature, the use of a person, place, or object to represent or signify an abstract idea by making their meanings different from their original literal meaning is symbolism. In symbolism, a person, place, or thing doesn't necessarily have to be attached to a single meaning. Symbols are used in our everyday life, for example, some sports teams name themselves after animals just to make their name fearsome.
A dove is a common symbol used as a concept for peace, it is also used to end conflict. Ordinarily a dove is supposed to be white bird, but the use of symbolism has given a dove another literal meaning, which makes us see a dove as a sign of peace and tranquility.
