On the first day of Woodstock, after a three hour set they weren’t ready for the next performer: Richie Havens takes an old song Motherless Child and ad-libs a new one to create this awesome spontaneous song.
This is incredible improvisational power of the multitudes!
Active Philosophy 
I finally got around to watching this. It is truly amazing how long people have been trying to achieve what we want to achieve. Why is there so much resistance to a better world? A human world? A world where we are free and where we are one and we are peaceful.
I think the world is finally changing and we must keep pushing to change it.