One day Parvati wanted to take a bath, but there was no one
to guard her. So she created a young boy, and asked him not to allow
anyone to enter while she bathed. She named the little boy, Ganesha. Soon
Lord Shiva returned and surprised to see Ganesha. Ganesha refused to allow
Lord Shiva to enter the house since Parvati had asked him not to
allow anyone. Lord Shiva was furious and sent his bull, Nandi to
fight the boy but Ganesha defeated Nandi. In a fit of range, Lord Shiva
cut off Ganesha's head.
When Parvati came out and saw her son dead, she was furious. Shiva
tried to console her but she couldn't stop crying. She ordered Shiva to
bring him back to life. Shiva asked Nandi to bring the head of the first
creature he found. Nandi went to obey his command and returned with the
head of an elephant. Lord Shiva placed the head of the elephant on
Ganesha's body and brought him back to life.