Our Lord told us that we are the light of the world. Nothing we do should bring shame to the Gospel. The Radiating Christ prayer reminds us daily that we are ambassadors for Christ and that we should bring glory to his name.
Radiating Christ Prayer
Dear Jesus, help me to spread Your fragrance wherever I go.
Flood my soul with Your spirit and life.
Penetrate and possess my whole being so utterly, that my life may only be a radiance of Yours.
Shine through me, and be so in me that every soul I come in contact with may feel Your presence in my soul.
Let them look up and see no longer me, but only Jesus!
Stay with me and then I shall begin to shine as You shine, so to shine as to be a light to others.
The light, O Jesus, will be all from You; none of it will be mine.
It will be you, shining on others through me.
Let me thus praise You the way You love best, by shining on those around me.
Let me preach You without preaching, not by words but by my example, by the catching force of the sympathetic influence of what I do,
the evident fullness of the love my heart bears to You.
Blessed Cardinal John Henry Newman
For more wonderful prayers like this, check out the Pieta Prayer Book.