Impulses from the center of the wheel send energy to the inner periphery to acquire knowledge for growth. The energy of growth is then ingested back to the center for assimilation.
Light seeks light.
Through all illusions of darkness, light always exists. If we were to use the metaphor of the pupil of the eye for the center of the wheel, we could see that in the presence of light, the pupil contracts exposing more of the beautiful iris. Light is Love. The wheel is at once the macro and microcosm of our totality. As we move around and across the circle we complete the pieces of learning that enhance our soul's growth in this incarnation.