HARMONIC CONVERGENCE
On August 16, 1987, a group of people tried to apply this concept (karma) with what they called the Harmonic Convergence. Thousands of people gathered at Mount Tamalpais just north of San Francisco and other designated religious hot spots around the world, such as Stonehenge, to usher in what was hoped to be a major energy shift. It was said that if enough people got together and thought positive thoughts, the global perspective would shift from one of human conflict to one of human cooperation; In other words there would be enough positive energy (karma) to usher in an era of universal peace.
So much for peace.
On the positive side, a whole bunch of t-shirts were sold.