"For with Thee is the fountain of life: in Thy Light shall we see light." (Psalms 36:9, emphasis mine) Light reveals darkness.
So it's only fitting that we should seek out the darkness and shed a little light on the subject.
With God's help of course: "He discovereth deep things out of darkness, and bringeth out to light the shadow of death." (Job 12:22)
To my mind, there are different types of darkness: There's the darkness of not knowing (see Deuteronomy 29:29). For a time, this may be necessary, but I believe that God will tell you if you want to know (see Jeremiah 33:3). That is, if you're willing to wait on Him (see Daniel 10:12).
Then there's the darkness of suffering. Suffering is a special place (and I don't mean to make light of it) that few people ever allow themselves to experience. Rest assured though, God will begin to open your aperture and let His light in (the human eye is so sensitive as to detect a single photon of light--thank you Johannes Kepler).
Suffering's a complex and holy topic. Not one to be dismissed with platitudes and homilies. (see Isaiah 45:3, hang in there!)
And then there's the darkness of evil in which this world is so steeped. This one's pretty easy. Did you know, we're the "light of the world" (Matthew 5:14)? And "children of the day" (1 Thessalonians 5:5)? When we, with the help of the Holy Spirit deal with our unrenewed minds, our "darkened understanding" (Ephesians 4:18; see also Romans 12:1-2), we are going to illuminate the hell out of this world.
Be grateful for the chiaroscuro--the balance of light and dark--in your life. Sure, "clouds and darkness" may be "round about Him" (Psalms 97:2), but "God is light and in Him is no darkness at all." (1 John 1:5)