When was the last time you took a long ride on a two-hump camel through the desert sand dunes? Or on horseback? Arid air and scorching overhead sun all day long. Not a bird in sight. Somewhere out there oasis awaits. It is not far, but will you make it there? How much longer do you have to endure? What is that vision on the horizon? Is it an oasis?  No, it only a mirage. Nothing but immense sands surrounding the weary traveler.