Generally speaking, people who are at lower levels of an organization serve those at higher levels. Bosses boss and their employees serve; coaches devise strategy and players do what the coach tells them to do; engineers design car parts and workers assemble them according to the engineers' instructions. Ideally, of course, it's a two-way street: A good boss knows he is really there to help his employees succeed; a good coach creates strategies based on his players' strengths. Even there, though, the boss and coach are really working in service of a higher goal, seeking organizational success. The same is true in the spiritual sense of the Bible. When someone serves another, they are in a lower state, serving a higher state (or a deeper evil, if they are being enslaved by people who represent evil). This can take many different forms, depending on the circumstances. In many cases, this creates a connection between "service" and intellectual things. This is because who we are is determined by what we love; our loves are the deepest part of us. What we think, our reasoning and intellect and the things we learn about, come from those loves and serve those loves.

7313. That they may serve Me in the wilderness. That this signifies worship in what is obscure, is evident from the signification of “serving Jehovah,” as being worship; and from the signification of a “wilderness,” as being that which is not inhabited and cultivated (see n. 2708, 3900); in the spiritual sense that which is obscure in respect to the good and truth of faith. That “wilderness” here denotes such obscurity is because in general they of the spiritual church, who are represented by the sons of Israel, are in obscurity in respect to the truths of faith (n. 2715, 2716, 2718, 2831, 2849, 2935, 2937, 3833, 4402, 6289, 6500, 6865, 6945, 7233); specifically because they are in obscurity when they emerge from a state of infestations and temptations. For they who are in infestations are surrounded by falsities, and are shaken like a reed by the wind, thus from doubt to affirmative, and from affirmative to doubt; and therefore when they newly ascend out of this state they are in obscurity, but this obscurity is then gradually enlightened. As there is such a state with those who are being infested, therefore the sons of Israel were brought into the wilderness in order that they might represent this state, in which were those of the spiritual church before the Lord’s coming; and also the state in which they who are of that church are at this day, and are being vastated in respect to falsities.

6865. And do thou bring forth My people the sons of Israel out of Egypt. That this signifies the consequent liberation of those who are of the spiritual church from infesting falsities is evident from the signification of “bringing forth” as being liberation; from the signification of the “sons of Israel” as being those of the spiritual church (see n. 6637); and from the signification of “Egypt” as being the false memory-knowledge which is against the truths of the church; thus infesting falsity (see n. 6692).

[2] It is false memory-knowledge which chiefly infests those of the spiritual church; because they have no perception of truth from good, but only the memory-knowledge of truth from doctrine; they who are such are very much infested by memory-knowledges. For memory-knowledges are the most general vessels, which sometimes appear contrary to truths, until truths being let into them make them transparent, and thus not to be noticed. Moreover, memory-knowledges are full of the fallacies of the senses, which cannot be dispelled by those who are in mere knowledges from doctrine, and not in the perception of truth from good; mainly because the light of the world predominates with them, which light appears clear so long as the light of heaven does not flow into it, but as soon as the light of heaven flows in, instead of light it becomes obscurity. Hence it is that these persons are enlightened and clever in the things of the world, but obscured and dull in the things of heaven.

[3] These believe themselves enlightened when they have confirmed in themselves the doctrinal things of the church, but it is a sensuous light from the light of the world which then deceives them; for doctrinal things of every kind can be confirmed, as Jewish doctrinal things by the Jews, enthusiastic ones by enthusiasts, Socinian ones by the Socinians, and heresies by heretics of every sort; and when they have been confirmed, they appear to them in the sensuous light as very truths. But they who are in the light of heaven are in enlightenment from the Lord; and before confirmations, by looking into the memory-knowledges which are beneath and are there arranged in order, they discern whether it is a truth that may be confirmed or not. Hence it is evident that these latter have an interior view, which is above the memory-knowledges, and thus is distinct; whereas the former have a lower view, which is within the memory-knowledges, and thus is an entangled one (see n. 2831).