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.

6110. 'For the famine was extremely serious' means desolation. This is clear from the meaning of 'famine' as an absence of good and of cognitions, dealt with in 1460, 3364, 5277, 5279, 5281, 5300, 5579, 5893, so that 'the famine was extremely serious' is desolation, 5360, 5376, 5415, 5576. As regards desolation, it should be recognized that truths and forms of good, together with cognitions of them, compose the spiritual life of those who are in heaven. They are the celestial and spiritual foods that nourish them; and these foods are given them every day by the Lord. When it is morning with them forms of good are supplied, and when it is midday truths are supplied; but when evening comes they lack them, and continue to lack them until it is twilight and then morning again. Their yearning when they lack them remains so strong that their desire for them is greater than starving people's desire for food on earth. This state is meant by 'the famine' and it is a kind of desolation, though not the kind experienced by those on the lower earth, 698, 699, 1106-1113.

[2] Scarcely anyone in the world can believe that the angelic heaven can have so great a yearning for truths and forms of good, and for cognitions of them. For people whose minds are set on nothing else than gain and glory, and who are given up to worldly pleasures, will be amazed to learn that those things constitute angelic life. 'What use they will say 'are cognitions of goodness and truth to me? What life can they give me? The things that bring me life and my life's delight are wealth, position, and worldly pleasures!' But let those who speak like this know that the life these things bring is that of the body, not that of the soul, and that the former kind of life perishes along with the body, whereas the latter kind remains for ever. Let them also know that people are ill-advised if while in the world they do not give any thought to spiritual life.

[3] Further as regards desolation, it exists on account of the yearning; for forms of good and truth are accepted in the measure that they are yearned for, and when the desires created by the yearning are fulfilled they produce feelings of happiness and bliss. In the next life therefore those who pass through desolation are refreshed immediately afterwards and realize their desires; everyone there is made more perfect by means of such alternating experiences. It is a fact worthy of note that the changing times of day in the natural world - morning, midday, evening, night, and morning again - are wholly representative of the changes that take place in the spiritual world, yet with one difference. The changes that occur in the spiritual world have an effect on the understanding and the will, establishing in them the basic elements of life, whereas the changes that occur in the world have an effect on and sustain things of the body.

[4] What is even more noteworthy is the fact that it is not the Lord who brings on the shades of evening and the darkness of night but those characteristics of angels, spirits, or men that are entirely their own. For the Lord as the Sun shines and flows in constantly; but because the evils and falsities that spring from what is his own are present in a man, spirit, or angel, they turn and direct him away from the Lord. In so doing they bring him into the shades of evening, and lead the wicked into the darkness of night. It is similar to the way things are with the sun in our world. It shines and flows in constantly, but the earth by rotating on its axis turns away from the sun and brings itself into shade and darkness.

[5] These features of the natural world come about because the natural world comes into being from the spiritual world and is also kept in being from there, as a consequence of which the entire natural system is a theatre representative of the Lord's kingdom, 3483, 4939. The purpose served by the changes that take place in the spiritual world is that all who are in heaven may constantly become more perfect. Such changes exist in the natural world for the same reason, for if they did not occur everything there would perish because of drought.

[6] It should be recognized however that in heaven there is no night, only evening, which is followed by the twilight that comes before morning; but in hell there is night. Changes take place there also, but they are of a contrary nature to those in heaven. In hell morning is the heat of evil desires, midday is the itch of false ideas, evening is anxiety, and night is torment. But through all these changes night predominates; merely variations of shade and darkness are what bring about those changes. In addition to this it should be recognized that in the spiritual world the changes which take place are not the same with one person as they are with another, also that the changes there do not divide into regular periods of time because they are variations of state that produce those changes. For instead of the periods of time that occur in the natural world there are states in the spiritual world, 1274, 1382, 2625, 2788, 2837, 3254, 3356, 4814, 4916, 4882, 4901.