Describe symbolism in for colored girls who have considered suicide/when the rainbow is enuf by Ntozake Shange

The rainbow is a predominant symbol in the play, one consciously applied to the ladies' costumes, which are the colors of the rainbow, plus brown. The presence of brown in the rainbow of colors symbolizes black identity within the rainbow of existence. The rainbow itself signifies the multiplicity of experience and the many facets of identity. "The rainbow is a fabulous symbol for me," Shange explained in a quote from an article by Mark Ribowsky that appeared in Sepia magazine, "If you see only one color, it's not beautiful. If you see them all, it is. A colored girl, by my definition, is a girl of many colors. But she can only see her overall beauty if she can see all the colors of herself. To do that, she has to look deep inside her. And when she looks inside herself, she will find... love and beauty."