My Jesus, I believe that You are present in the Most Holy Sacrament. I love You above all things, and I desire to receive You into my soul. Since I cannot at this moment receive You sacramentally, come at least spiritually into my heart. I embrace You as if You were already there and unite myself wholly to You. Never permit me to be separated from You. Amen.
History
St. Alphonsus Liguori composed this prayer in the 18th century. Spiritual Communion has been commended by many saints and popes.
When to Pray
When you cannot attend Mass, while watching Mass online, during Adoration, or anytime you desire union with Christ.