If you are willing to be mindful, you have to commit yourself. In some sense, you have to take a kind of vow that you are willing to be mindful and aware. It is saying to yourself: "This is my work for today and for the rest of my life. I'm willing to be aware. I'm willing to be mindful." When you have such a strong and real conviction to begin with, there are no further problems, in some sense.
From "From Raw Eggs to Stepping-Stones," in The Path Is the Goal: A Basic Handbook of Buddhist Meditation, pages 119 to 120.