'How deep is this soul I feel I'm in?
Seen a lot of light and done a lot with it
How deep is this hole I feel I'm in?
Seen a lot of light and done a lot with it'
means that she has seen a lot of light or hope, in his heart, that he can be right for her and she's done the best she can to use that. Yet, she is deep inside and can't seem to get out of it because she still loves him, regardless how cruel his actions.
I think the part that reads,
'How deep is this soul I feel I'm in? Seen a lot of light and done a lot with it How deep is this hole I feel I'm in? Seen a lot of light and done a lot with it'
means that she has seen a lot of light or hope, in his heart, that he can be right for her and she's done the best she can to use that. Yet, she is deep inside and can't seem to get out of it because she still loves him, regardless how cruel his actions.