Every now and then, a small plane arrives from nowhere – as tiny as the head of a match-stick – it flies around my head, buzzing, like a pesky little fly, then disappears into my ear. Later, it lands on my throbbing heart. Excited tourists get out of the plane, constantly clicking their cameras, watching the narrow chasms open-mouthed. After some time, the pilot tells the passengers to get back on the plane. The storms are unpredictable here, he warns. So the small plane flies out of my ear, and as I watch them leave, I wish I could go with them. But I know that's impossible. My fear of heights keeps me in the deep.