I think this song is about a girl who has been left alone and because of this somehow she cannot be herself. She is "playing warden to her soul".
It hurts Jim to see her in this state and so he's telling her to be herself, to "saw through all her bars".
In the last verse I think he's telling her to take chances and live on the edge, because there's nothing more satisfying than to "swim in mystery"
I think this song is about a girl who has been left alone and because of this somehow she cannot be herself. She is "playing warden to her soul". It hurts Jim to see her in this state and so he's telling her to be herself, to "saw through all her bars". In the last verse I think he's telling her to take chances and live on the edge, because there's nothing more satisfying than to "swim in mystery"