I think that "stains" relates to events that happen in our lives that effect us forever, which is why they are "stains". An example of a "stain" would be a tragic event, such as someone close to you dies. You keep these events within you and as a result your mind takes over and convinces you that you will "never feel the same". These "stains" eat away at us and effect the way we live our lives. I got this from the chorus:
I think that "stains" relates to events that happen in our lives that effect us forever, which is why they are "stains". An example of a "stain" would be a tragic event, such as someone close to you dies. You keep these events within you and as a result your mind takes over and convinces you that you will "never feel the same". These "stains" eat away at us and effect the way we live our lives. I got this from the chorus: