This is an interesting fresco interpretation of the Conversion of Saul. While it emphasizes his Roman citizenship, it doesn't depict his Jewish origins. It also omits the artistic interpretation that he was stricken from a beast of burden.
Nothing Paul has ever written explains the human origins of his conversion. Unlike Augustine, there were no prodromal symptoms of the sudden metanoia. He hadn't experienced remorse, he hadn't been moved by anything the apostles preached, not even apparently Stephen's heroic death. His conversion came from God.
Such conversions are needed in the world today and our prayers for them profess our belief that they are not only miraculous events in the gospel, but can accompany us in our efforts to evangelize in the modern world.