St. John Macias, the friend of St. John the Evangelist, was called "the thief of purgatory" because with his rosary he constantly interceded for the souls in purgatory and never missed a day in the redemption of a soul.
The iconography represents St. John Macias freeing the souls of purgatory with the rosary. The saint always carried the rosary that his mother left him as an inheritance. Because of his constant praying of the rosary for the souls in purgatory, his biographers call him the "thief of purgatory". In his last statement, after telling how he prayed at night, he revealed that:
"I, Friar John, often wondered: "O Lord, when will so many sins come to an end, when will men love you, when will your creatures cease to fear you and worship you?" In the beginning I was not so devoted to the souls in purgatory. "Servant of God, the souls in purgatory told me, remember us, do not forget us, help us with your prayers in the presence of God and pray to his divine Majesty to take us out of these sorrows". The crowd was so large that it was like a swarm of bees. Turning to them, I answered: What can I, holy souls, do or ask for you, being a wretched man?".
Eudaldo FORMENT, St. Thomas Aquinas, His life, his work and his time, Madrid, BAC, 2009, page 247. IS NOT A MISTAKE. Forment includes in the biography of the Dominican Thomas Aquinas very tasty biographical and hagiographical paragraphs of other saints, in particular of St. John Macias (Juan Arcas Sanchez).
This is what St. John Macias did. It is easy. Yesterday as today. why doesn't he do it?