Diwali, also known as the Festival of Lights, is celebrated by over a billion people around the world. Diwali is the biggest festival for Hindus across the globe and is also celebrated by Sikhs, Jains and some Buddhists. Diwali celebrates the victory of good over evil, light over darkness, positivity, and the light we all have within. There are five days of Diwali and several stories associated with the holiday.