 Sif has been linked with Ravdna, the consort of the Sami thunder-god Horagalles. Red berries of rowan were holy to Ravdna, and the name Ravdna resembles the North-Germanic words for the tree (for example, Old Norse reynir). According to Skáldskaparmál the rowan is called "the salvation of Thor" because Thor once saved himself by clinging to it. It has been theorized that Sif was once conceived in the form of a rowan to which Thor clung.
