Well, Happy Divali to everyone. Divali is a Hindu/Jain festival which signifies the victory of Light over Darkness. It literally is the Festival of Lights. It signifies the day when Ram, the King of Ayodhya returned to Ayodhya after 14 years of exile.
It's a nice day, an excuse to stuff our faces with delicious mithai or Indian sweets.
For more:
http://www.bawarchi.com/festivals/diwali1.html