“rAmen” is the closing word of prayer to the Flying Spaghetti Monster, which is an atheist construct in mockery of God (or indeed, any supernatural entity). The story is that there is just as much physical evidence for the existence and activity of God as there is for some sort of Flying Spaghetti Monster doing the same thing(s).
An FSMite blessing is “may He touch you with His Noodly Appendage.”