Ask Ganesha:
Ganesha represent a real organism or class of thing which is simply passage of creative dream. Ganesha's amusing; fat body symbolizes happiness, kindness, and his role as the bestowed of success. He is a god of wisdom; his large body specifies the wealth of knowledge has within. Here are more important things that signify the outer look has no relation with inner beauty and sacred position. His single tusk indicates the need to shed the ego and make sacrifices on the spiritual path. It also indicates the need for a strong sacred will to decide on a moral, singular course of action and not vacillate from it.
 

Ganesh four arms indicate the power that support people and uniformly to destroy evil. Ganesh hands hold several different signs according to which role he is supercilious. The lotus flowers, books, and swastika painted on his hand are symbols of spiritual knowledge. Ganesh trunk held in the shape of the Sanskrit sacred mantra Om.