The Symbolic is a structural object. It is a third order and the the first criterion of structuralism.
The Symbolic is concerned with the subject whereas the imaginary is concerned with the ego.
The Symbolic is linguistic, not psychological. When canned laughter in the t.V. Does the laughing for me, or when greeting practices does the harmony for me, I don't have to go to the trouble of mobilizing inner states.
The Symbolic is a structuralist principle that serves a differentiating role, in contrast to the imaginary which plays an assimilating, reflecting, doubling and duplicating role.
The Symbolic is all about desire, bound up inextricably with the play of language once we enter it. The real, by contrast, concerns need (and the unquenchable nature of satisfaction) and the imaginary concerns demand).
The Symbolic is made possible because of one's acceptance of the name-of-the-father, those laws and restrictions that control both one's desire and the rules of communication. Through recognition of the name-of-the-father, one is able to enter into a community of others.
The Symbolic is (if viewed through the game of chess) the rules, the formal symbolic standpoint whereby the 'knight' is defined only by the moves this figure can make.
The Symbolic is made possible because of your acceptance of the name-of-the-father, those laws and restrictions that control both your desire and the rules of communication.