How to live for the glory of God?

I've been reading Henri Nouwen's book, The Genesee Diary, about the seven months he spent in a trappist monastery. He said,

The question, "How to live for the glory of God and not for your own glory?" has become very important to me...The question is not so much, "How to live for the glory of God?" but, "How to live who we are, how to make true our deepest self?"

So I've been thinking about that question. How do I make true the deepest self that God created me to be? And how does that glorify God?