Lets define these terms under this context. "Dark" can be associated with emotional chaos.
It's dark because the operator can only perceive that which is noisy input.
There will always be "external" circumstances that are experienced.
When those experiences become the only landscape of personal perception, then we have the "Dark".
Usually these circumstances will foster and grow internal emotions that drive personal decisions.
To transmute this "dark" scenario, we must separate from it.
Thus the second word that must be defined under this context, "light".
Light is true will and honest perception.
The definition of darkness is longer and has more words attached because it is simply that.
So what do we do with this?
That's up to you to learn, but I would offer these word up for your consideration.
Every problem was created, that means every solution can also be, created.
If you are drudging through the darkness, know that the light was and is, always with you.
What has been shown to you, is for naught. But only if you say it so.
Observe, make decisions, take action.
Nothing ventured, nothing gained.
Work in the light.
The Individual Is Paramount
As Within So Without