Consciousness is self-effulgent. Here effulgence is used as a metaphor for “revealing.” In other words, Consciousness is self-revealing. Since human beings need the aid of light to see objects, the Sages us the words “light” or “bright” or “effulgence” as metaphors for Consciousness for our understanding only. Since a lamp does not need another lamp to reveal its presence, Consciousness does not need another Consciousness to reveal its presence, and that is why they say Consciousness is self-effulgent because it is self-revealing. Therefore, Consciousness alone counts as self-shinning, not so any other object, not even the Sun. Consciousness per se reveals objects and not the light of the sun or a lamp because sunlight or a lamp (objects) are themselves objects within Consciousness, so are time and space and the whole caboodle. There is no consciousness in a corpse because the reflective and dynamic element (mind) of the individual has departed, and so it becomes unreflective like dead wood and an merely an object of another human’ cognition.
