Seeing in the Dark

An Angel stood at the edge of the cave, Its walls curving out towards the night. Bulging with contained and over-fed darkness. Purple hues ballooned and blossomed in the depths before his eyes. White luminescent wings twitched, longing for rooms that sang with space and streamed with sunlight. Open windows to step out of into brilliant, beckoning skies.
But the cave and the darkness was calling the Angel and he was not at liberty to refuse. The claustrophobia slid clammy hands over his face once inside the cavern, though his feet echoed on the puddled floor; describing vast emptiness about him. But it was the darkness not the walls of the cave that caused the Angel to feel suffocated.
The Angel felt the blackness inside his lungs, insipid and poisonous to his breathing light. The clouds ahead embraced and wrestled with each other. The Angel flexed his wings, sending muscular ripples beneath their feathery coats that were no longer swan-white but raven. He strode deep into the heart of the cavern, ready to see the dark.