There are lights which ascend and lights which descend. The ascending lights are the lights of the heart; the descending lights are those of the Throne. The false self is the veil between the Throne and the heart, like springs toward like. Light ascends toward light and light descends upon light, and "it is light upon light."
~ from PERFUME OF THE DESERT by A. Harvey and E. Hunt
There comes a time when the world gets quiet and the only thing left is your own heart. So you'd better learn the sound of it. Otherwise you'll never understand what it's saying.