What decorations are in Diwali?

Since the Diwali is a festival of lights, the decorations that are used in it are obviously all sorts of lamps, candles and other sources of light. It is a tradition in the Diwali to light fire crackers during the festival. In Hindu, the firecracker's part in the festival is to make a lot of light and noises of happiness in order to let the gods up in the heavens know of the people's great rejoicing.