The document discusses Freyr, a god of the sun in Norse mythology. Freyr is less well-known than other sun gods like Helios, Apollo, or Ra from other mythologies. As a god of the sun, fertility, and prosperity, Freyr was one of the most important gods among the Vanir tribe. He was associated with sacred kingship, peace, and good weather. Freyr's importance is shown through his connections to sacred kingship rituals and the fact that the oldest temple in Sweden was dedicated to him.