What exactly does "celebrating Diwali" mean?

Decorating your house with lights and diyas, wearing new clothes and bursting crackers? Eating a hundred different sweets and gorging on yummy delicacies? Or hanging out with friends, playing cards and having a generally awesome time?

As the festival of lights draws nearer, we asked a few people about their plans for Diwali and what the festival meant to them. Their answers will make you ponder.