"Tell them about your dream, Martin."
These words spoken to Martin Luther King Jr. 52 years ago on August 28, 1963 by Mahalia Jackson inspired perhaps the most well-known prophetic use of spiritual imagination in modern history. King's "I Have A Dream" speech was filled with hope and radical imagery. King envisioned a nation where injustice and oppression were no longer prevalent -- a nation so transformed by hope and love that freedom and justice rang "from every state and every city." This kind of dream, [.....]