An established symbol is one that is universally known or common. Readers would understand what the symbol means because it probably has been used repeatedly in literature. For example, the American flag symbolizes patriotism, a cross symbolizes religion, and a rose symbolizes love.
How is the meaning of a literary symbol established?
The meaning of a literary symbol must be established and supported by the entire context of the story. The symbol has its meaning in the story, not outside it. To be called a symbol, an item must suggest a meaning different in kind from its literal meaning; a symbol is something more than its class or type.
What is the symbol represent?
A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship. Symbols allow people to go beyond what is known or seen by creating linkages between otherwise very different concepts and experiences.
Signs are usually informative, regulatory, warning or prohibitory. A sign is ought to be followed as it is. Symbol is a form of a sign that may have deep meaning. It can be interpreted in different ways since its meaning may not be universally shared by different people.