As of this writing, The Shack by William P. Young has risen to the top of Amazon’s Most Highlighted Books of All Time list for Kindle books. The bestselling religious mystery seems to have provided plenty of relationship advice for Kindle readers.

Our Popular Passages feature uses  list to track the most underlined parts of bestselling books–exploring what kinds of writing inspire eBook readers. Here are a few popular quotes…

1,570 Kindle users highlighted this passage: “Grace doesn’t depend on suffering to exist, but where there is suffering you will find grace in many facets and colors.”

Next, 1, 381 Kindle users loved this sentence: “Relationships are never about power, and one way to avoid the will to power is to choose to limit oneself—to serve.”

Finally, 1,289 Kindle users underlined this part: “Trust is the fruit of a relationship in which you know you are loved. Because you do not know that I love you, you cannot trust me.”