There are numerous “miracle prayers” in the Catholic Church’s treasury of devotions, and one of them is connected to the devotion to Jesus’ Sacred Heart.
The prayer is frequently printed on backs of holy cards, and the author is unknown.
Yet, many claim many miraculous favors when it is prayed with faith and trust in God.
Dear Heart of Jesus, in the past, I have asked for many favors. This time I ask for a very special one. (Here mention your request.)
Take it, dear Jesus, and place it within your own heart, where your Father sees it. Then, in his merciful eyes, it will become your favor and not mine. Amen.
The instructions that accompany this prayer typically suggest reciting this prayer, with faith, for three consecutive days.
As with any prayer claiming to be miraculous, it is never the prayer itself that generates the miracle, but God responding to our incessant cries and seeing our genuine faith.