The five-day festival of Diwali, or “The Festival of Lights,” is one of the most important festivals of the year for Hindus. It is also celebrated by Jains and Sikhs. Observed by over a billion people around the world, Diwali is an official holiday in India and ten other countries. The celebration highlights many of the great stories of Hindu tradition, principally the victorious return of Prince Rama and his wife Sita from exile and triumph over their adversaries. Traditional celebrations in Hindu homes include the lighting of oil-filled lamps or candles that welcome Rama and Sita and celebrate the triumph of good over evil. Depending on region and tradition, the holiday also symbolizes stories that celebrate the harvest and welcome prosperity.