Saturday, Dec. 9, 2023 at 4 p.m. on KPBS 2 (Not available in the PBS App). The film focuses on the ancient and obscure Christian prayer first recited by the Apostles more than 2,000 years ago in the Egyptian desert. Originally passed down verbally from one generation to the next, monks eventually transcribed the sacred words into instruction manuals originally intended only for those dedicated to a life of isolation.