Legio Mithraic Prayer

The Mysteries of Mithras were the popular religion among the Roman Legio at the time of the Five Good Emperors, the "unipolar moment" of the Pax Romana over the known Western hemisphere at the time (the world west of the Persian-Roman border to the western most provinces of Gaul, Britannia and Terracognesis-Iberia).

http://mithraeum.info/prayer_and_meditation.htm
https://en.wikipedia.org/wiki/Nerva–Antonine_dynasty

*** The popular religion of the slave class at the time was Catacomb Christianity (Ichthys/Ichtus) >>>

https://earlychurchhistory.org/christian-symbols/the-fish-symbol-ichthus/
https://en.wikipedia.org/wiki/Ichthys