Brown notes towards the beginning of the book not feeling she belonged as part of her family growing up, the worst type of being an outsider, and goes on to write about four elements of true belonging:1. People are hard to hate up close. Move in.
2. Speak truth to bullshit. Be civil.
3. Hold hands. With strangers.
4. Strong back. Soft front. Wild heart.
In illustrating her third point, Brown tells the story of her driving in Houston and cars pulling to the side with news of the shuttle Challenger explosion. To the fourth point, she notes how strong back, soft front is a Buddhist principle, and back to the overarching idea of belonging, she covers how people should stop looking for confirmation they don't below, and to be aware of the difference between fitting in and true belonging.
Brown is a good writer and at the end of the book makes mention of additional writing being available on her website.