I have always had a happy relationship with dirt. As a kid, I took pride in being perpetually filthy, and felt a strong kinship with the Peanuts character Pig Pen. Once I became a farmer, I discovered that dirt – or using grown-up farmers’ terminology, soil – is so much more than just the fun stuff that makes kids dirty. Soil is absolutely an essential ingredient in the food system, and it’s something that most of us just don’t spend a lot of time thinking about.