In "Written in My Own Heart's Blood," Buck emphasizes the importance of kindness and hospitality towards strangers. He highlights that by being open to those we do not know, we may encounter surprising and profound connections, even experiencing moments of grace or divinity. This reflects a broader message about the significance of generosity in human interactions.

This thought encourages readers to be mindful of their treatment of others, reinforcing the idea that every encounter could be meaningful. Such interactions can lead to unexpected blessings or transformative experiences, encouraging a welcoming attitude in our daily lives.