Apart from traditional significance, lighting a diya in your house also has spiritual significance. It is said to be a representation of Agni, the fire God. The glow of the lamp brings positive energy into your house and dispels sorrow and darkness. Its light destroys all evil, cleanses and purifies your soul. It illuminates your spirit and leads it towards goodness. The light from a diya is also said to help you acknowledge the presence of an inner light within you. This inner light helps you overcome all obstacles and walk on the path of righteousness.