Timothy Keller highlighted C.S. Lewis's The Screwtape Letters to illustrate the difference between genuine love and the selfish 'hunger' that characterizes hell. He specifically referenced a passage where Screwtape explains how evil spirits seek to consume the individuality of others to satisfy their own ravenous desires. Keller used this classic work to provide a vivid theological contrast for his audience during his sermon on relationships.
Episode: Freedom in Relationships
The book is about a senior demon named Screwtape who is giving advice to his nephew on how to tempt humans and ultimately make them lose their faith.
There's this great place in Lewis's Screwtape Letters. In the very beginning, he explains how he thinks, well, it's pretty interesting if I can find it. Yeah.
He says, on earth, this desire is often called love, this attraction to people. But in hell, I believe they recognize it for what it is, it's hunger.
There though, the hunger is more ravenous, and a fuller satisfaction is possible.
There, I suggest the stronger evil spirits can really suck the weaker evil spirits into themselves and permanently gorge their own being on the weaker's outraged individuality.
It is for this that Satan desires.