The tattoos on Ragnar Lothbrok’s head are believed to be spiritual protection symbols. According to Viking belief, these symbols had mystical powers and would protect Ragnar from his enemies. Specifically, the tattoos are spirals, symbols of the sun, runes, and symbols of Odin—the chief Norse god. The spirals are thought to represent the cycles of life, while the sun is seen as a representation of life and fertility. The runes were believed to confer strength and wisdom while the Odin symbols suggest Ragnar’s connection to the powerful Norse god. Together, these tattoos would have allowed Ragnar to go boldly into battle, secure in the knowledge that he was protected by powerful spiritual forces.