Arti diya is a traditional Indian lamp used in Hindu ceremonies and rituals. It is made of Brass and is filled with oil, and a cotton wick is lit to create a flame. The flame is believed to bring light and knowledge, and is often used as part of a prayer ritual. Arti diyas are also used to decorate homes and temples, and are often given as gifts during special occasions. The light from the diya is believed to bring positivity, hope, and spiritual enlightenment.