What are the main themes explored in valhalla rising?

The only film discussed in the provided source is Scorpio Rising, a 1963 experimental short by Kenneth Anger. That film’s central themes include the occult, biker subculture, homosexuality, Christianity, and Nazism, along with a fascination with rebel icons such as James Dean and Marlon Brando. No details about Valhalla Rising are present in the evidence supplied.