A dream featuring your friends or a friend can suggest that you need to look at an aspect of yourself or your personality, or your relationship with the person in the dream. Alternatively, the dream can imply that there is something about yourself or your character that you need to come to terms with, understand, or look at in a different way.
If it is your best friend in the dream then it may suggest that you need to focus on your positive qualities or the things that bring out the best in you, whereas a childhood friend may imply that you need to focus on the carefree and innocent side of yourself, or maybe you are longing to escape the pressures of adult life.