When talking about her ancestors, Angelou is referring to her great grandmother who was a slave (and passed away in 1942). By saying she is the dream, Angelou is attempting to set an example for others of her race in regards to rising above hard situations. Her goal with her work is to inspire change. She is demanding that society leave behind the negative effects of slavery and history of oppression with intent to rise above.
Shown through her later works, Angelou's great success with not only poetry, but other aspects of American culture. being a poet of presidents, civil rights activist, filmmaker, actor, dancer, and above all educator. She was the first of many special experiences for the African American community; for instance, she served as the first black female street car driver in San Francisco, she wrote the first script by a black woman to be made into a Hollywood film, and her best-selling, award-winning autobiographical book (I Know Why the Caged Bird Sings) was one of the first ever written by an African American woman to generate widespread readership. Overall successful in her rise above the deep-rooted racist American beliefs as she played a major role in the civil rights movement.