What is the theme in The Story of the Trapp Family Singers by Maria von Trapp?

The will of God is an important theme. This concept is woven through the book. Although Maria does not state it directly, it is linked to fate and accepting fate without reproach. One wonders if the use of the phrase is more Maria's than whom she often ascribes it to. Right from the start of the book, Mother Abess deems it is the Will of God for Maria to leave the convent and go to work for the von Trapp family. The phrase "Will of God" usually comes from those wearing clergical clothing. It can be understood more as a presumption than exact knowledge of what God's Will may actually be.