Navratri, meaning 'nine nights', is one of the most popular and widely celebrated Hindu festivals in many parts of India. Gujarat, however, is the only state that erupts into a nine-night dance festival, perhaps the longest in the world. Each night, all over the state, villages and cities alike, people gather in open spaces to celebrate feminine divinity, referred to as Shakti. It is probably the most important Indian festival you have never heard of. Essentially, it is an art festival and the celebration of good over the evil.