At the outset of Creation, He removed all light. And that is the source of all that ever goes wrong.
Why did He remove the light? Why did He choose that things could go wrong?
Sometimes we say He wanted darkness as a black velvet setting, an empty space in which to shine a new light and make a world of light. The darkness, we say, is there for the sake of light, as pain exists for the sake of healing.
But this could not be the entire answer.
Why? Because darkness for the purpose of light is not complete darkness. In our world, we find evil that defies explanation, shirks all answers, offers no place for light to shine.
The entire answer must be that in Light alone, G‑d cannot be found. For He is beyond dark and light, presence and absence, being and not being.
And so, just as darkness exists for the sake of light, so light exists for the sake of darkness—to reveal its true purpose, to allow knowledge of a wholly transcendent G‑d to enter His world.
What we accomplish when we withstand the challenge of darkness. When we choose light.
We can only perceive sensations through comparing their opposites.
We can only perceive G_d's quality through comparing our opposite character.
We come to understand love through comparing it to hatred.
We experience the darkness of perceiving ourselves as separate individuals. This illusion creates desires for greed, power, status. Competition reigns over cooperation.This causes the conflict, hatred and suffering we witness and experience.
Once we recognize the darkness that our opposite nature can cause we can begin to reveal the ultimate goodness through our unified desire to feel G_d's presence between us.
We begin with a micro model of this state of mutual kindness as Abraham initiated millenia ago. The positive energy created radiates to humanity. Eventually light reigns over darkness.
The darkness served it's purpose. It revealed the light.