The flooding and Noah's Ark is just as mythological as the world being shaped from the flesh of Ymir. People believe in God, and there are still people who worship Odin. Christianty is a myth, and a religion. The Norns worshiped there Gods and Goddess's just as Christians worship theirs, just in different ways depending on their resources and cultural perspectives. Its thought that Moses(not such if its spelt correctly) wrote the Old Testment for the bible, as aomeone wrote the myths for the vikings, the celts etc. Mythology is just as relevent as Religion is, its the same stories, told in different words. In my opinion, of course.