Does culture influence religion or does religion influence culture?

To elaborate; does a person's environment influence their religious beliefs or does a religion influence the environment? For example, the south has had a reputation for being conservative. Does the grand majority's religious belief's influence the culture or does the conservative culture influence religious belief's?

Say, you get a person from the Netherlands and then someone from the south. They are on opposite sides of the political spectrum. (The person from the Netherlands being the liberal and the person from the south being the conservative. again, i'm using stereotypes.) Would their culture and history influence their religious beliefs or their religious belief's influence their culture?

My friend commented saying :
   " I think that most culture is born out of religion. Ceremonies and holidays born out of religion now         become part of everyday life. Even though nowadays, people do not recognize religion, it is in their daily lives. Like in India. Most of the dress, and mannerisms of the Indian people were borne out of their Hindu religion. Such as the saris, the bindi, and the religious ceremonies such as cremation and bathing in the Ganges River.
Just an observation."