I started unpacking Psalm 23, I’m falling asleep to sheep noises like on YouTube, and I’m getting books on sheep. I need to understand the lens of a sheep to understand how this works.

In his 1956 study, The Bible and the Liturgy, Fr. Jean-Guenolé-Marie Daniélou, S.J., cites the mystagogical writings of Church Fathers to explain how the psalm was used to teach Christian initiates.