The eternal lamp represents perfect awareness. Likening the illumination of awareness to that of a lamp, those who seek liberation see their body as the lamp, their mind as its wick, the addition of discipline as its oil, and the power of wisdom as its flame. By lighting this lamp of perfect awareness they dispel all darkness and delusion. And by passing this dharma on to others they're able to use one lamp to light thousands of lamps. And because these lamps likewise light countless other lamps, their light lasts forever.