 In chapter 15 of Gylfaginning , Just @-@ As @-@ High says that Bifröst is also called <unk> , and that every day the gods ride their horses across it ( with the exception of Thor , who instead wades through the boiling waters of the rivers Körmt and Örmt ) to reach Urðarbrunnr , a holy well where the gods have their court . As a reference , Just @-@ As @-@ High quotes the second of the two stanzas in Grímnismál that mention the bridge ( see above ) . Gangleri asks if fire burns over Bifröst . High says that the red in the bridge is burning fire , and , without it , the frost jotnar and mountain jotnar would " go up into heaven " if anyone who wanted could cross Bifröst . High adds that , in heaven , " there are many beautiful places " and that " everywhere there has divine protection around it . " 
