Everything in the universe is involved in the creation of light in one form or another. Biological life arises from the sunlight digested by plants through the progress of photosynthesis, which is the food that sustains all. In fact our solar system is one single organism, and the effect of sunlight and moonlight are relative to the metabolism of life-circles andreproductive habits. Life becomes the transformer of light. So is the mind, whose main function is to perceive creative thoughts of the internal light. This light is the Divine Conscience, or Atma.This power of consciousness is the highest and most subtle form of light, and the connection of physics, biology and spirituality is the basis ofVedic Astrology. The universe dwells within our own conscious.