My aunt knows I am not in the slightest bit religious and I won't disrespect her faith she's devout catholic.
Every Christmas, Easter, Birthday she sends me a very religious card with a passage from the bible and a well meaning message about how much God loves me. I can't not reply I'm not rude but how can I politely ask her to not send me religious cards or as it's just a few times a year and she feels feels she's doing something nice just suck it up and keep being polite?