In my mind, one of the fundamental similarities between both the speech and the drama is the idea that individuals who might find themselves socially marginalized do not have to acquiesce to such a perception. When Walter rejects Karl Lindner's offer not to move, it becomes a moment where Walter, as a man of color, recognizes to realize his family's dream, where "sons of slaves and sons of slaveowners" sit at the same table, or live in the same neighborhood. One of Dr. King's messages is the idea that people of color possess a freedom that enables them to define their own reality. It might be something that the social order might not fully realize, but Dr. King is seeking to ensure that people of color do recognize it. In this, the dream in the speech is understood by the Younger family, a family that does not necessarily succumb to the expectations of a society around them, but rather rises above it. In this, the Youngers live out Dr. King's dream of living a life of what should be as opposed to what is. In this, a similarity between the speech and the drama is evident.