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.

7929. 'And not allow the destroyer to come to your houses' means that falsity and evil from the hells will not at all come near the will. This is clear from the meaning of 'will not allow' as will not come near; from the meaning of 'the destroyer' as hell, dealt with in 7879, thus falsity and evil from the hells, since the hells derive their existence from falsity and evil; and from the meaning of 'houses' as aspects of the will, dealt with in 710, 7848. For 'house' means a person, therefore also his mind, since a person is a person by virtue of his understanding of truth and his desire for good, which are abilities belonging to the mind. And since a person is a person primarily by virtue of that part of the mind called the will, the will is therefore also meant by 'house'. But which of these is meant is evident from the train of thought in the internal sense.