Ganesha is the formless Divinity – encapsulated in a magnificent form, for the benefit of the devotee. As per Hindu mythology, he is the son of Lord Shiva and Goddess Parvati.
Gan means group. The universe is a group of atoms and different energies. This universe would be in chaos if there was no supreme law governing these diverse groups of entities.
The Lord of all these groups of atoms and energies is Ganesha.
He is the supreme consciousness that pervades all and brings order in this universe.
Ganesh is usually depicted colored red; he is pot bellied, has one tusk broken, and has four arms that may hold a noose called a pasam, an elephant goad, and a pot of rice, or his favorite sweets, laddus. His appetite for these sweets is legendary and offerings of them are often left at his shrine.
A pasam or noose is a triple twine weapon. Each of the three twines represent: 1. Arrogance and conceit, 2. Maya – the illusory nature of the real world, and 3. Ignorance.