Last year I spent six months participating in what I was told was a psychological experiment. I found an ad in my local paper looking for imaginative people looking to make good money, and since it was the only ad that week that I was remotely qualified for, I gave them a call and we arranged an interview.
They told me that all I would have to do is stay in a room, alone, with sensors attached to my head to read my brain activity, and while I was there I would visualize a double of myself. They called it my “tulpa”.
It seemed easy enough, and I agreed to do it as soon as they told me how much I would be paid. And the next day, I began. They brought me to a simple room and gave me a bed, then attached sensors to my head and hooked them into a little black box on the table beside me. They talked me through the process of visualizing my double again, and explained that if I got bored or restless, instead of moving around, I should visualize my double moving around, or try to interact with him, and so on. The idea was to keep him with me the entire time I was in the room.