I found myself, standing in the entrance to a massive building, being guided by an unknown force that was far too big for me to resist or even to question. As we herded into the alcove, I could see up ahead, an ascending escalator with people riding smoothly up one side, and down the other. Suspended in mid air above the escalator, were 10 different coloured gaseous squares, like a series of lasers swirling through a mist, all at head height. I watched as people boarded the escalator, and rose up, their heads each passing through these strange coloured zones. Semi-reluctantly, I boarded the escalator, aware of the endless jostling queue behind and in front of me. Easing my way up to the first zone, I felt it pass smoothly over my face. It felt strange, though not unpleasant - like that fuzziness that you feel when you wake too early in the morning. I moved out of the zone, leaving the feeling behind. As I continued the ride up to the top, passing through each of the different coloured ...