Something that really stuck with me is that they seemed to believe in their gods in an interesting way: they specifically negotiated their vows, being very explicit about what is promised. Because they really expect the gods to punish them in the corporal world, shortly
We’re a lot more loose with our vows nowadays. Although to be fair, negotiations with all-powerful monotheistic gods don’t make as much sense in the first place, really. Most of these gods are so powerful that you can’t really offer them anything but obedience/loyalty/love.