Lyric discussion by jack_sparrow 

it sounds as if the girl in this song is depressed and is about to commit suicide, very tragic,

"and though it's red blood bleeding from her now it's more like cold blue ice in her heart she feels like kicking out all the windows and setting fire to this life she could change everything about her using colors bold and bright but all the colors mix together--to grey "

she has cut herself somehow, and between the twisted emotions of self-defeat, depression, anxiety, etc., the colors of her life, with the help of her spilt blood, has mixed to grey. This is very typical of Dave Matthews, morbid, yet so touching, every can relate to this person at some point in their lives

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