What is the reason Dr. Martin Luther King, Jr. gave his famous "I Have a Dream" speech?

The
'I Have A Dream' speech was what I like to call 'an alignment of
what was possible in the face of the immpossible. Although the 'March on Washington'
was created by CORE and SNCC neither of them could have anticipated the 'glorious outcome'. The
1963 March on Washington reaffirmed for some, enlightened others, and promised again that the
rights of all Americans was the underlying purpose of Dr. Martin Luther King's speech.  The
reason Dr. King's 'I Have A Dream' speech is so moving is because he spoke
what he BELIEVED was the truth regarding racial injustice in the U.S.  The 1963 speech took on
the sound of a higher power.  Dr. King's words stopped people in their tracks....and forced them
to recognize the plight of others.  The speech was given at the right time in the right place,
which resulted in a heightened sense of awareness among many Americans.