Lyric discussion by evilMoW 

Cover art for The Cage lyrics by Sonata Arctica

the roots of the song could be from the norse myths of Fenir, like Munin says. the werewolf

the soul of the song, i feel though, could be of a prisoner who is finally escape from a nightmare that they were innocent from. they keep running, always looking to be untamed. they find out why they were hurt, and promise to get their revenge against who (or what) ever hurt them.

Just my interpretation, like it or leave