In February 1991, Icke visited a pre-Inca Sillustani burial ground near Puno, Peru, where he felt drawn to a particular circle of waist-high stones. As he stood in the circle he had two thoughts: that people would be talking about this in 100 years, and that it would be over when it rained. His body shook as though plugged into an electrical socket, he wrote, and new ideas poured into him. Then it started raining and the experience ended. He described it as the kundalini (a term from Hindu yoga) activating his chakras, or energy centres, triggering a higher level of consciousness.