"The Difficult Miracle of Black Poetry in America."

Contemporary poet June Jordan calls Wheatley "Phillis Miracle" in her work "The Difficult Miracle of Black Poetry in American." Why is Wheatley's achievements considered a "miracle?" How did this miracle affect the thinking and assumptions at the time and even contributed to the abolition of slavery? Include direct quotes from Jordan's work, but it would help to futher develop your argument; however, Jordan's work would be a primary source (and not count toward your teo secondary sources)