For various reasons we may be prevented from receiving the Eucharist at Mass. We may have broken the one hour fast, be in a state of mortal sin, or we could even be homebound, unable to leave our home to attend Mass.
In these cases, the Church encourages us to make an act of “spiritual communion,” where we unite ourselves to God through prayer. It is a beautiful way to express to God our desire to be united with him when we are unable to complete that union in the reception of Holy Communion.
The ultimate goal of our lives should be communion with God and an act of spiritual communion can help a person draw closer to that goal.
An Act of Spiritual Communion
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.
For more info: Spiritual Communion: Prayer With Our Lord Anywhere