Bereshit B: Chapter 27
The second chamber: Hod

This chamber is filled with pure white light which remains in a state of potential until the interface of the first chamber acts upon it through our positive actions and prayers. This white light then shines through the first chamber. As it fulfills all our desires, the one light suddenly becomes many. A wonderful illustration of this process is visible in nature, when a ray of sunlight strikes a gemstone and refracts into the seven colors of the rainbow.