Someone that you used to love so much dies and after some time this death makes you feel guilty since you promised to this one you would be a 'better' person from then on, but you simply cannot keep your promise just because you love to live in 'sin' while he/she always tried to live on the 'right' way when he/she was alive. So now you are forced to face for the first time a fear of being punished by God for living at this way ("There's a fire in life where we will burn"), specially because your dead fellow seems to follow you wherever you are ("yet you sit there looking at me all day/There's more to you than I can see/There's a shadow of another hanging over me") and this makes you feel so ashamed of yourself.
Someone that you used to love so much dies and after some time this death makes you feel guilty since you promised to this one you would be a 'better' person from then on, but you simply cannot keep your promise just because you love to live in 'sin' while he/she always tried to live on the 'right' way when he/she was alive. So now you are forced to face for the first time a fear of being punished by God for living at this way ("There's a fire in life where we will burn"), specially because your dead fellow seems to follow you wherever you are ("yet you sit there looking at me all day/There's more to you than I can see/There's a shadow of another hanging over me") and this makes you feel so ashamed of yourself.