Through the window, I saw the beautiful world outside: the sky, the sun, the cacti, the rocks, and the dirt. How I longed to return to it! I licked at the air, trying to smell the desert's delicious dusty scent, but could not. How was I able to see it without smelling it? Did humans control scents as well as the temperature and the waters? Is that what windows were for, to keep out scents? Why did they wish to put invisible barriers between themselves and the world?