Diwali or Deepavali, popularly known as the "festival of lights", is celebrated between mid-October and mid-November for different reasons. For Hindus, Diwali is one of the most important festivals of the year and is celebrated in families by performing traditional activities together in their homes. For Jains, Diwali marks the attainment of moksha or nirvana by Mahavira in 527 BC. While the story behind Deepavali and the manner of celebration varies from region to region (festive fireworks, worship, lights, sharing of sweets), the essence is the same – to rejoice in the Inner Light (Atman) or the underlying Reality of all things (Brahman).