Sister/Family
(see also mother, father, brother)

Family: Your whole self; the members of the family are your emotions or complexes.  Information taken from:   Dream Dictionary

Sister: Carl Jung claimed that childhood sibling rivalry and jealousy influence the dream symbol of the sister.  For a female dreamer, she may represent the shadow side of the personality that is neglected and undeveloped.  Sometimes this may include anti-social qualities that are alarming.  However, in a man's dreams a sister may represent the female side of his own personality (anima). From: The Hidden Meaning of Dreams (Hamilton-Parker)

  Songs referenced: 

Black-Dove

Professional Widow

Sister

Bells for Her

She's Your Cocaine

Sister Named Desire

Suede