India, Aug. 14 -- Light and brightness represent the positive, the good, and the good spirits. In this view, darkness represents evil. By lighting a lamp, the lamp becomes a form of fire or "Tej" in Sanskrit. The lamp burns. not to be the light itself, but merely as a message: to remind all who are present of peace, and of positive brightness.

Lamp or Diya is an indispensable part of worship in Hindu religion. Lamps can be lit using oil or ghee. The correct method is to light diyas using ghee. It is believed that lighting lamps for prayer at home using ghee brings peace, happiness and prosperity.

Our ancestors insisted on lighting diyas using ghee morning and evening keeping in mind the antibacterial properties of ghee. Such lamps also he...