From The Imitation of Christ (IV.3), by Thomas à Kempis:
Behold, I come to You, Lord, that I may prosper by Your gift and be delighted at Your holy banquet which You, O God, in Your sweetness have prepared for Your poor. Behold, all that I can or ought to desire is in You. You are my salvation and my redemption, my hope and strength, my honor and glory.
Gladden, then, this day the soul of Your servant because I have raised my heart to You, O Lord Jesus. I long to receive You now, devoutly and reverently. I desire to bring You into my house that, with Zacchaeus, I may merit Your blessing and be numbered among the children of Abraham.
My soul longs for Your Body; my heart desires to be united with You. Give me Yourself—it is enough; for without You there is no consolation. Without You I cannot exist, without Your visitation I cannot live. I must often come to You, therefore, and receive the strength of my salvation lest, deprived of this heavenly food, I grow weak on the way. Once, most merciful Jesus, while preaching to the people and healing their many ills, You said: “I will not send them away fasting, lest they faint in the way.” Deal with me likewise, You who have left Yourself in this Sacrament for the consolation of the faithful. You are sweet refreshment to the soul, and he who eats You worthily will be a sharer in, and an heir to, eternal glory.
It is indeed necessary for me, who falls and sins so often, who so quickly becomes lax and weak, to renew, cleanse, and inflame myself through frequent prayer, confession, and the holy reception of Your Body, lest perhaps by abstaining too long, I fall away from my holy purpose. For from the days of his youth the senses of man are prone to evil, and unless divine aid strengthens him, he quickly falls deeper. But Holy Communion removes him from evil and confirms him in good.