Kabbalah zu Wajikra 6:6

One older person stood up from behind a wall, and said: Rebbe my teacher, The Holy Light, come and light candles, for that is a Mitzva (commandment), on that it is said: An everlasting fire shall be kept burning on the altar, it should not be extinguished. And, on that it is also said: To light the eternal flame. This is surely the light of the divine, the light that shines within the soul of every person. Come, light it with her.