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.

5071. The reason why the expression 'cursed' is used of those on the left and why their punishment is called 'eternal fire' in the following statements -'Then He will also say to those on the left, Depart from Me, O cursed ones, into eternal fire prepared for the devil and his angels' and 'these will go away into eternal punishment' - is that they have turned away from good and truth and have turned towards evil and falsity. 'Cursing' in the internal sense of the Word means a turning away, 245, 379, 1427, 3570, 3584. The eternal fire into which they were to depart is not material fire, nor is it a tormented conscience, but a craving for evil. For cravings like this in a person are spiritual fires which consume him during the life of the body and torment him in the next life. Because of these fires burning within them, the inhabitants of hell use dreadful methods to torture one another.

[2] Eternal fire is clearly not material fire; and the reason it is not a tormented conscience is that none who are governed by evil have any conscience; and those who have had no conscience during their lifetime cannot have any in the next life. But the reason eternal fire is a craving is that the entire fire of life in a person is fuelled by his loves, a heavenly fire by the love of what is good and true, a hellish fire by the love of what is evil and false. Or what amounts to the same, a heavenly fire is fuelled by love to the Lord and love towards the neighbour, and a hellish fire by self-love and love of the world. Anyone can see, if he stops to think, that all the fire or heat burning within a person is fuelled by his loves. This also explains why love is called spiritual heat and why in the Word fire and heat have no other meaning, 934 (end), 1297, 1527, 1528, 1861, 2446, 4906. The fire of life in the evil is also such that when they feel very strong cravings, a kind of fire is also burning in them, which inflames them with an intense and furious desire to torment others. But the fire of life in the good is such that when a higher level of affection exists with them, a kind of fire is alight in them too. But this fire inflames them with a loving and zealous desire to do good to others.