Write a compelling news report about Pope Francis’s heartfelt public appearance on Palm Sunday, as he addressed the faithful from his wheelchair in St. Peter’s Square. Explore the significance of his message, “Happy Palm Sunday, Happy Holy Week,” and how it resonated with the crowd, including a special interaction with a group of delighted nuns. Delve into the atmosphere of the event as the Pope continues his recovery journey from double pneumonia, and reflect on his recent private meetings with King Charles and Queen Camilla during this time.