For me it's not necessarily the type of fish that is the issue but s targeting single fish.
To cast into a school and hook up with something is OK but there is nothing like casting at a single cruising bonefish with a floating gummy minnow and seeing the fish come up and take the fly. Or casting a bunny pattern to a laid up tarpon and twitch twitch and it come up slowly sucks the fly in you try to set the hook and then it jumps.
I don't know what this has got do do with religion but the normal reaction is "Oh my god".
Casting a fly at a tailing permit is similar only they don't normally join in and the reaction then is "Oh ****".