Something you said, either posted or replied to, or "liked" years ago. You haven't given them enough to go on. It believes you are fascinated with Sand Jesus...I don't generally use FB anymore but I logged in the other day and was flooded with weird AI sand sculptures of Jesus. I'm talking 10+ of them in the first 25 or so posts on my feed.
I am very much an atheist so idk what the heck FB is doing