The correct answer to this open question is the following.
Although there is no text attached to support the answer or any other reference, what I think meant the most to Angelou was the "ender young man."
This was so because Angelou could see a different side of Martin Luther King. Not the preacher that led the civil rights movement, or the frontman during a demonstration, but she saw the other side, a more tender one that reflected the interior of Dr. King. This side made King more approachable to her. This allowed her to have must trust an get a better idea of the man commonly known as the tireless leader of such an important movement.