Thirty-three feet down is exactly where I found myself recently, floating statically, swaddled in 2,000 feet of warm Atlantic Ocean in the Bahamas, with only the air in my lungs to sustain me. When I looked up, I saw strands of gauzy light reaching toward the water's surface, where a roaring Bahamian sun silhouetted my fellow divers and the Pursuit S 408, the vessel that had brought me to this strange space. When I looked down, all I could see was dark-blue nothingness. Back in college, I would often begin term papers with a favorite quote from Friedrich Nietzsche: "If you gaze long into an abyss, the abyss also gazes into you." Back then I was grasping at wisdom I didn't quite understand, in an attempt to pad my intellectual credibility. But in that moment, down below, as I floated Zen-like in a boundless expanse, fully mortal in an immortal place, I finally understood what the great thinker meant. So I bent at the hips, flipped my fins over my head and kicked downward, feeling the sea's gaping maw suck me in.