The relics of Carlo Acutis on display in 2024. Photo: Archdiocese of Perth. The relic of St Carlo Acutis, the Church's first millennial saint will draw pilgrims to St Mary's Cathedral from 31 July to 5 August, as the relic's national mission reaches Perth. The relic is a section of St Carlo's pericardium, the membrane that encloses and protects the heart, measuring six centimetres by tw...