The person who had put this up on youtube had said this (in french and I translated it)
The Silent Warrior (Valhalla Rising) is the film's mystery: the mystery of a geographic area unknown mystery of an omnipresent character on the screen which we will never know the voice, a mystery and strong invisible bond between the child and the warrior. Everything is simple and complex at the same time. Nicolas Winding Refn takes us to a deeper trance divine: repetition of still shots revealing landscapes of mountains and clear waters, mists terrifying when the future has neither shape nor texture, where visions One Eye, bleeding, a look-over and sometimes himself. The images, beautiful, punctuate a journey to hell, where nature, such as film, evolves through the figure of the circle.
Hope you enjoy!