Eucharistic miracles can be useful and fruitful aids to our faith. For example:

• They help us go beyond the visible, the perceptible and admit the existence of something beyond.  Precisely because it is recognized as an extraordinary happening, the Eucharistic miracle has no explanation in scientific facts and reasoning.  It goes beyond human reason and challenges a person to ‘go beyond’ the perceptible, the visible, the human, that is to say, to admit that there is something incomprehensible, something humanly unexplainable with human reason alone, something that scientifically cannot be demonstrated.
   
• They can give someone the occasion–during catechetical instruction–to speak of public Revelation and of its importance to the Church and to Christians.  Eucharistic miracles are all about extraordinary events that have taken place after Jesus’ institution of the Eucharist, after the end of the New Testament, that is to say, after the end of public Revelation.

When we love someone very much, we desire to be constantly in his company Our Divine Lord had an immeasurable love for every member of the human race, and gave proof of this by shedding His blood for the salvation of all mankind. However, after His task on earth was completed, He was destined to ascend into heaven to take His place at the right hand of His Father; and so it would seem that He could no longer associate intimately with men. But His love and power devised a means whereby He could still remain on earth, not merely in one place but in every church, and thus be the intimate companion of every one of His faithful followers. This means is the Blessed Sacrament, the Holy Eucharist, wherein Our Lord remains truly present under the appearances of bread and wine. 

The Catholic doctrine of the Holy Eucharist contains many mysteries. It is beyond our comprehension how the same living Christ who is in heaven should also be on earth, in every place where the Holy Eucharist is consecrated. We cannot understand how the body of our Savior with its full stature can be present beneath the small host. We cannot attempt to explain how our Divine Redeemer can be present, whole and entire, in the smallest portions of the consecrated species of bread and wine, although we have some resemblance to this miracle in the presence of our entire soul in every portion of our body. But we have the statement of Our Lord Himself for the truth of these mysteries and hence it is our duty to believe them without hesitation. When Our Savior first announced the doctrine of the Holy Eucharist to His followers, some of them would not believe. They said: "This is a hard saying, who can listen to it ?" (John, 6, 62), and some of them even left Him forever.  

Catholics accept the words of Our Lord Himself who said: "This is my body . . . this is my blood," and adore Him as truly present in the Holy Eucharist. 

The Holy Eucharist is the very center of Catholic worship, the heart of Catholic life.