Quick note that the first verse is: "Encaged in a memory/Encaged in a prison of guilt/Surrounded by reproach/And everybody knows"
I think that this song is about losing someone and losing it -- the facade of being okay is shattered, hence the line "Your broken mask serves you no more".
I'm not sure about the whole angel bit, but it seems like the angel (possibly a term of endearment) has left and the person left behind feels shattered.
Quick note that the first verse is: "Encaged in a memory/Encaged in a prison of guilt/Surrounded by reproach/And everybody knows"
I think that this song is about losing someone and losing it -- the facade of being okay is shattered, hence the line "Your broken mask serves you no more". I'm not sure about the whole angel bit, but it seems like the angel (possibly a term of endearment) has left and the person left behind feels shattered.