Anima Christi

Soul of Christ, sanctify me.
Body of Christ, save me.
Blood of Christ, inebriate me.
Water from the side of Christ, wash me.
Passion of Christ, strengthen me.
O, good Jesus, hear me.
Within Thy wounds, hide me.
Never let me be separated from Thee.
From the wicked foe, defend me
And at the hour of my death,
Call me and bid me come to Thee,
That with Thy angels and saints
I may praise Thee forever in eternity. Amen.

A favorite prayer of St. Ignatius of Loyola; author unknown; dates from the 14th-century (Wikipedia).