Enlightenment has the meaning of Ming Bai (clear and bright); there is sunlight and moonlight in the characters of Ming Bai. We will see Buddha's light and our own light when we get enlightened, which is our own Buddha nature. Buddha nature is different from the nature of ordinary people. It has no form or quality for people to catch, touch or smell. This light is very simple, clear and bright, but all things and all wisdoms are in this light; all things in the universe are clear and bright, and originate from this light.
There are many kinds of light. Each world has its own special light, color and quality. Without enlightened masters teaching the Dharma and their guidance, we wouldn't know what our levels exactly are when we see the light, nor do we know whether it's a higher or lower level. There should be a guide or a teacher to take us there if we want to go to the high level. If we want to get enlightened, there should be a method. We shouldn't practice in a daze by ourselves and think it will lead us to enlightenment; if we do not know what enlightenment is, even if we practice spiritually, we won't understand it; we won't know exactly whether it's enlightenment or not.