By Michael Johnston, Catholic East Texas - It is a brilliant and fruitful territory and it is where so many people have had the privilege and pleasure of understanding and truth. Natural Family Planning (NFP) is only a small piece of that larger whole, but it is an essential piece to the puzzle—which fits perfectly... The harmony of it is satisfying. That does not mean it is easy. The kinds of ideas which unite the material and immaterial are the most intensive and grueling sort, but these ideas lived out are also the most fruitful.