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.

572. 13:2 Now the beast which I saw was like a leopard. This symbolizes their heresy destructive of the church, being founded on the Word's truths falsified.

Animals in general symbolize people in respect to their affections (no. 567), and a leopard symbolizes an affection or penchant for falsifying the Word's truths. Moreover, because it is a fierce beast and slaughters harmless animals, it also symbolizes a heresy destructive of the church.

A leopard symbolizes the Word's truths falsified because of its black and white spots, its black spots symbolizing falsities, and the whiteness between them symbolizing truth. Consequently, because it is a fierce and savage beast, it symbolizes the Word's truths falsified and so destroyed.

A leopard has a similar symbolism in the following places:

Shall an Ethiopian change his skin or a leopard its spots? Then you also can do good who have been taught to do evil. (Jeremiah 13:23)

...a lion from the forest slew (the great men), a wolf in the fields shall devastate them; a leopard is watching their cities. Everyone who goes out... shall be torn in pieces, because... their apostasies have become mighty. (Jeremiah 5:6)

A leopard lying watching their cities is to ambush doctrinal truths - a city being doctrine (no. 194).

(Because) they forgot Me... I have become to them like a lion, and like a leopard by the path I will watch them. (Hosea 13:5-7)

A path, too, symbolizes truth (no. 176).

The wolf shall tarry with the lamb, and the leopard shall lie down with the young goat... (Isaiah 11:6)

The subject there is the Lord's kingdom to come. The young goat is genuine truth in the church, and the leopard is that truth falsified.

(The third beast that came up from the sea) was like a leopard, which had on its back four wings... (Daniel 7:6)

On the four beasts seen by Daniel, see no. 574.