A farmer's work is more like that of a horse trainer than a mechanic, more like that of a healer than a computer repairperson. It is not really accurate to say that farmers grow food or raise animals. Farmers alter environmental conditions in such a way as to maximize a plant's or an animal's innate ability to do its own growing -- in the same way that the best horse trainers seek to draw out abilities already within their horses or in the way the best healers know when to stand back and let their patients' bodies do the work. There is mystery in farming.