Diwali, also known as Deepavali, is one of India's most significant festivals, celebrated by millions of people around the world. Its roots stretch back over 2,500 years, and the festival is deeply intertwined with religious and historical traditions in Hinduism, Jainism, Sikhism, and Buddhism. Each of these faiths has its own unique interpretation and significance of Diwali, but the underlying theme is always the victory of light over darkness, good over evil, and knowledge over ignorance.