Answer:

Introduction:
The item shown in the picture is mainly used in the festival of Diwali.

Explanation:
Diwali, also known as the Festival of Lights, is one of the most widely celebrated festivals in India. It symbolizes the victory of light over darkness and good over evil. Diwali is celebrated with great enthusiasm and joy by Hindus all over the world.

Significance of Diwali:
Diwali marks the return of Lord Rama to Ayodhya after defeating the demon king Ravana. It is believed that people lit oil lamps to welcome Lord Rama and celebrate his homecoming. Since then, the tradition of lighting lamps and bursting fireworks has become an integral part of Diwali celebrations.

Items used in Diwali:
There are several items that are commonly used during Diwali festivities. These include:

1. Diyas: Diyas are small clay lamps that are lit during Diwali. They are usually filled with oil or ghee (clarified butter) and a cotton wick is inserted. Diyas are placed in every corner of the house, on windowsills, and in courtyards to illuminate the surroundings and create a festive atmosphere.

2. Rangoli: Rangoli is a decorative art form created on the floor using colored powders, rice, flowers, or colored sand. It is believed to bring good luck and prosperity. Rangoli designs are made in various patterns and shapes, and they add a vibrant and colorful touch to the festive decorations.

3. Firecrackers: Firecrackers are an essential part of Diwali celebrations. They are burst to symbolize the triumph of good over evil and to drive away negative energies. Fireworks and firecrackers light up the night sky during Diwali and create a festive and joyous atmosphere.

4. Decorations: People decorate their homes and surroundings with colorful lights, lanterns, and flowers during Diwali. The entrance of the house is adorned with a decorative rangoli, and doorways are decorated with garlands and torans (door hangings). The aim is to make the surroundings look beautiful and welcoming for the gods and goddesses.

Conclusion:
The item shown in the picture, which is a diya or clay lamp, is mainly used in the festival of Diwali. Diwali is a festival of lights, and diyas play a significant role in illuminating homes and creating a beautiful and festive ambiance.