Ganesha is widely revered as the remover of obstacles, the patron of arts and sciences and the deva of intellect and wisdom. As the god of beginnings, he is honoured at the start of rites and ceremonies. ... In the Ganapatya tradition of Hinduism, Ganesha is the supreme deity.
Ganesha is the son of Shiva and Parvati and he is the brother of Karthikeya (or Subrahmanya), the god of war. ... Repentant, Shiva ordered a new head to be found for the boy and, as the first animal available was an elephant, so Ganesha gained a new head and became the most distinctive of the Hindu gods.