Daisha Calliet, at age 15, has a vision far beyond her years. Calliet’s artwork illustrated this at the community-centered celebration of street art’s transformative energy, Exhibit BE, which held its closing ceremony on Martin Luther King Jr. Day.

Among the commendable displays of art throughout Prospect 3: Exhibit BE, Calliet’s poem, “The END of Silence,” stood out as thought provoking, profound, and moving.

“I wrote that poem around the time of the indictment of Darren Wilson, the ma...