In a word, love. Progressive forces must fully recognize this, lest we adopt some of their wretched tactics. It is love which gives our cause meaning, and which will sustain us as we work to manifest the brotherhood and sisterhood of humankind.
Yogi Bhajan often spoke eloquently about love. Here is an excerpt from what he said in a lecture in June 1970:
"Man has to live in love - love which is not lust. Love where there is no possession, no slavery of another person. Love which is a giving. Love which is for the sake of love. Love which lasts forever. Love which is a total sacrifice. Love which is more than the grace of God itself. Love which gives a halo around the face of the person. Love through which one can see God in the eyes of the person. Love with which the body shines, the words become sweet, and the communication is absolutely beautiful. That love for which one sacrifices his own life to save a little bit of injury to another person. That love with which one pleasantly and peacefully takes all the pain into his heart to redeem another fellow being. That love can only flow when one knows how to tune into that universal God."
-from Aquarian Times, volume 5, number 6, Nov/Dec 2006, p.28.
So tune in to the heartbeat of the planet, the highest energies of the Cosmos, and the Truth in our souls. Channel the positive force of love into ourselves and out into the world until it becomes a momentous force for transformation.