Diwali, also known as Deepavali, or the "Festival of Lights", is one of the most important festivals of the Hindus. It is celebrated in families by performing traditional activities together in their homes.
Diwali involves the lighting of small clay lamps filled with oil to signify the triumph of good over evil. The word Diwali is a contraction of Deepavali, which translates into "row of lamps".
Here wishing all Hindus Happy Diwali. May all beings in the world be free and happy :)