You are the salt of the earth. (Matthew 5:13)
The theme of chapter 4 of Taste and See by Margaret Feinberg is salt. The author visits a salt mine, and ponders on the significance of salt in some of the stories in the Bible. Discussing the declaration by Jesus that we are the salt of the earth, she points out that salt is used for preserving, flavoring, and fertilizing. -- I had never associated salt with fertilizer until I read this book, and I'm thankful for the fresh perspective.
At the end of this chapter, on page 114, Margaret refers to a passsage in Talmud and encourage us to try to ease 1/60 of the pain of someone who is suffering. It is a great wisdom.