In his book First Things First, Stephen Covey teaches the importance of priority living through a visual illustration of putting big rocks in a jar first. Jesus says such when he says, “Strive first for the kingdom of God and his righteousness, and all these things will be given to you as well.” So in a sense, what he is saying is, “Give your entire attention to what God is doing right now.”
Nadia Boulanger—one of my sisters studied piano for 2 summers in France under her.