Ganesha is also defined as Omkara or Aumkara
Ganesha is also defined as Omkara or Aumkara, that is "having the form of Om (or Aum) (see the section The names of Ganesha). In fact, the shape of his body is a copy of the outline of the Devanagari letter which indicates the celebrated Bija Mantra. For this reason, Ganesha is considered the bodily incarnation of the entire Cosmos, He who is at the base of all of the phenomenal world (Vishvadhara, Jagadoddhara). Moreover, in the Tamil language, the sacred syllable is indicated precisely by a character which recalls the shape of the elephant's head of Ganesha.