https://en.m.wikipedia.org/wiki/Praxis_(process)
So within the world of Norrath, fishing could be considered a praxis for followers of the Oceanlord because the act itself would serve as a reminder of one's connection to and dependence on the sea, but abstaining from the consumption of fish could also be a praxis. Not sure what the blatant roleplay sin here would be, killing Phinny?