I found myself and several other people standing at the bottom of the ocean on a smooth bed of dark grey, almost black sand. The water had disappeared. Suddenly, to the east, I saw a giant tsunami wave approaching. It stretched across the horizon as far as I could see. The power of the water had sucked up the blackish sand and had turned the wave into the same disturbing color. There was no escape, so I held my breath and prayed. The wave crashed down, and I could feel its weight upon me. Everything was now completely dark and tumultuous.