The 'festival of lights' is one of the most popular festivals in the Hindu calendar. Like most Hindu festivals, Diwali celebrates the triumph of good over evil. According to one legend Diwali is observed to mark the return of Lord Rama to his homeland, Ayodhya, after defeating Ravana, an evil demon. It is said that people lit lamps down the streets to celebrate the Lord Rama's victory. In keeping with the legend, Hindus across the world light lamps and fireworks on this day.