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.

710. 'Enter, you and all your house, into the ark' means things that constitute the will. This is clear from what has just been stated. In the previous chapter, which dealt with things of the understanding, verse 18 reads differently, namely 'You shall enter into the ark, you, and your sons, and your wife, and your sons' wives with you'. That 'a house' means the will and what constitutes the will is clear from various places in the Word, as in Jeremiah,

Their houses will be turned over to others, their fields and wives together. Jeremiah 6:11.

Here both 'houses' and 'fields and wives' refers to things of the will. In the same prophet,

Build houses and dwell in them; and plant gardens and eat their fruit. Jeremiah 29:5, 28.

Here 'building and dwelling in houses' has to do with the will, 'planting gardens' with the understanding. The same applies in other places. And frequently 'the house of Jehovah' stands for the Church where love is the chief thing. 'The house of Judah' stands for the celestial Church, 'the house of Israel' for the spiritual Church, because 'a house' means the Church. Consequently the mind of the member of the Church, which has within it things of the will and those of the understanding, that is, of charity and of faith, is meant by 'a house'.