Now you've mentioned Beowolf, it makes a little more sense to me. Please. I am not meaning to be other than helpful. Until you mentioned the source, the lyric meant nothing/didn't connect and I suspect you will find the same problem with any wider audience. Unlike poems or even a novel, you get VERY little time in a song to actually make the point. This point can be vague and lead you to other areas but you should at least have an identifiable direction you can travel in. I had no idea of what the song was about until you mentioned Beowolf and, though it didn't switch a light bulb on in my head, it gave me something to hang on to...
On a more positive note, the is a lot of imagery in this that is quite powerful.
On a less positive note, don't rely on your audience being inteligent.
Is it recorded and is there a link I can listen to?