The handmade Indian brass oil lamp is a traditional oil lamp known as a diya. Used since ancient times as a decoration and a source of light, the diya is an oil lamp that burns vegetable oil or ghee Indian butter. Once the lamp is filled, you place a cotton wick inside and light it to fill the room with light. The lamps are used as a part of festivals, but you do not need to be hindu to enjoy them. You can also use them as decorations in your home in the living room or bedroom or place them on a dining table instead of candles.