Jesus uses Eucharistic Miracles to show that His Body and Blood are truly in this sacrament.

He uses these Miracles to help our faith grow stronger, to show love for those who believe, and to remind those who doubt He is really present in the Eucharist.

Yet even without miracles, trusting our faith, we recognize Jesus in the Eucharist.
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.