The carpet covers a metal plate. A steel rod runs through the cane. The steel rod bends, and runs up the yogi's sleeve. The rod bends down once more, and attaches to a tiny metal seat. The whole design leverages in on itself, so the steel plate covered by the small carpet does not need to be anchored to the ground in any way. This is the exact same design that has been used for hundreds of years, meaning levitation has always been faked.