For me , means two things: the history about a Ku Klux Klan,[white people kills the black people,only because they was black], even that exist here in USA, and i'm think is horrible, altough i'm wish or hope that all the horrible racism cuold'be desapier one day. And my another theory for that sentences means for me: All the things that we have inside, in the heart, or in the mind, we think i'ts only own secret , and thats why we think it's blak or dark. I think that's my prefer version, if not tell me: Who don' have a dark side in the heart or in the mind, and dark and black means almost the same, mayby only for my, or maby not. But at the same tieme black shoes, dress and bags are really adorable, je je!!!! Ok, I.'m really apreciate to talk in english with somebody who even talk and write in spanish so nice. Saluditos, goodbye, and good luck, mi "cuenta chistes" o my "sweet and funny joker". Bye,bye.