I was so stunned by this strange realization that my mind stopped. I was fully conscious, but there were no more thoughts. Then I felt drawn into what seemed like a vortex of energy. It was a slow movement at first and then accelerated. I was gripped by an intense fear, and my body started to shake. I heard the words "resist nothing," as if spoken inside my chest. I could feel myself being sucked into a void. It felt as if the void was inside myself rather than outside. Suddenly, there was no more fear, and I let myself fall into that void. I have no recollection of what happened after that.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment