Brass diyas are commonly used for daily use, special occasions, decorations, or as a gifting option. They are believed to generate a spiritual sound that helps in creating positive surroundings. Lighting a brass diya can help to purify the air, enhance positivity, aid meditation, boost creativity, and promote good health. 
The use of diyas can be traced back to ancient Vedic times when they were used to illuminate homes and temples. In Hinduism, lighting diyas is considered an auspicious act that symbolizes the victory of light over darkness, knowledge over ignorance, and good over evil.