It's all in your mind from birth. DNA scientist are discovering that our world view and, consequently, our view of religion, is genetic as much as environmental.
Religious people hang in church and tend to marry same types and have religious kids.
Non-religious people tend to do the opposite and have non-religious kids.
It is interesting that the Conservative Christian view of the world may be due to a genetic mutation as much as upbringing.......
For articles on the connection of reason, emotion, and religious beliefs, visit:
http://uuhome.de/global/english/information.html
http://www.wws.princeton.edu/cgi-bin...420/942004.PDF