Yenra : Catholic Prayers : St. Augustine's Prayer to the Holy Spirit

I just completed and highly recommend: My Daily Catholic Bible, 20-Minute Daily readings - Kindle Edition (get Kindle app for phone) (paid link)

Breathe

Breathe in me, O Holy Spirit, that my thoughts may all be holy. Act in me, O Holy Spirit, that my work, too, may be holy. Draw my heart, O Holy Spirit, that I love but what is holy. Strengthen me, O Holy Spirit, to defend all that is holy. Guard me, then, O Holy Spirit, that I always may be holy. Amen.