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.

-Augustine, Prayer to the Holy Spirit