129. Anybody can recognize that the basic assumptions a person makes, even when completely false, govern him, and that all knowledge and reasoning buttress those assumptions. For countless flattering ideas occur to him to confirm him in falsities. Consequently when a person's basic assumption is to believe nothing until he sees and understands it, he cannot possibly believe; for spiritual and celestial things are neither visible to the eyes nor comprehensible in mental images. But the true order is for a person to become wise from the Lord, that is, from His Word. In that case everything follows as it should, and he is also enlightened in matters of reason and of fact. Indeed nobody is forbidden to acquire knowledge, since it is useful for life and gives delight. And the person in whom faith resides is in no way forbidden to think and to talk as learned people in the world do. But he does so from the premise of belief in the Lord's Word and of confirming spiritual and celestial truths by means of natural truths, using as far as is possible the terminology of the learned world. Consequently his premise must be the Lord, not self; the former is life, while the latter is death.

A "field" in the Bible usually represents the Lord's church, and more specifically the desire for good within the church. It's where good things start, take root, and grow. When you have a desire to be a good person and to do good things, the natural first questions are "What does that mean?", "What should I do?", "What can I do?". You look for ideas, concepts, direction. Once you figure out something you want to do or a change you want to make in yourself, you seek specific knowledge. If you want to volunteer at a food pantry, say, you'd need to know whom to call, when they need help, where to go, what to bring. Armed with that knowhow, you're ready to get to work. That process could be compared to food production. You start with a field -- which is that desire to be good. Then you plant seeds -- those ideas and concepts. Those seeds sprout into plants -- the specific facts and knowledge needed for the task (easily seen in the food pantry example, but also true with deeper tasks like "being more tolerant of my co-workers" or "taking more time for prayer," or "consciously being a more loving spouse"). Finally, those plants produce food -- the actual good thing that you go and do. The Writings also say that in a number of cases a "field" represents the doctrine, or teachings, of the church. This sounds markedly different. The desire for good is emotional, a drive, a wanting; doctrine is a set of ideas. But for a church to be true, its doctrine must be centered on a desire for good, and must lead people toward doing what is good. So sound doctrine is actually closely bound up with the desire for good.