Don't be afraid of the dark because it has a secret...

G-d creates light on the first day and then he hides it. Why create it if you are going to hide it? the Zohar says the numeric value of light Ohr =207 is the same as secret Raz =207. Now secret seems to be the furthest thing from light. Light reveals but a secret is hidden!

G-d creates the world with a master plan with a purpose. The purpose is LIGHT. Light that we transform out of the darkness of this world by making this world a dwelling place for G-d. “Let there be light!” is the cry that permeates all of existence.

G-d looks at creation and saw it was Good. Good and light are synonymous in Jewish thought. So the light is not just purpose of creation it is beneath the surface of all creation. Even the darkness has light within. Do not be afraid of creation or even of the darkness for it whispers a secret I am light within. Transform the darkness and the light will pour forth.

Likutei Sichos vol. 10 pgs. 7-12