God of glory,
Show us the mercy of light when all we see is shadow
Though we sometimes compare our valley of shadow to another and become ashamed
Though we sometimes create our own shadows by shutting our eyes
Though we sometimes prefer darkness
Show us the mercy of light
Your light is revelation, which probably why we hide, so we ask you to
Illuminate
Reveal
Speak
In the name of Jesus, who overcame the darkness of death.
Curious Heretic 
“Though we sometimes prefer darkness.” Indeed.
Though we ( I mean I) frequently, habitually, rebelliously, premeditatedly prefer darkness.
The amazing thing about the Light of Christ is, as your wonderful prayer notes, that it not only Reveals, but is full of Mercy as well. Astounding.