From The Inner Voice of Love:
“To live a disciplined life is to live in such a way that you want only to be where God is with you. The more deeply you live your spiritual life, the easier it will be to discern the difference between living with God and living without God, and the easier it will be to move away from the places where God is no longer with you.
The great challenge here is faithfulness, which must be lived in the choices of every moment. When your eating, drinking, working, playing, speaking, or writing is no longer for the glory of God, you should stop it immediately, because when you no longer live for the glory of God, you begin living for your own glory. Then you separate yourself from God and do yourself harm.
Your main question should always be whether something is lived with or without God. You have your own inner knowledge to answer that question. Every time you do something that comes from your needs for acceptance, affirmation, or affection, and every time you do something that makes these needs grow, you know that you are not with God. These needs will never be satisfied; they will only increase when you yield to them. But every time you do something for the glory of God, you will know God’s peace in your heart and find rest there.” (pp. 23-24)