This isn't hard to figure out. The student knows ahead of time that the teacher is going to try and 'pull' him using 'energy'. The student stands there for awhile, and due to X amount of years of programming, convinces himself that he is 'feeling the pull'. Then he is pulled.

If the teacher tried is with a stranger off the street, and didn't tell the person ahead of time what he was trying to do then the results would be very different.

--Chris
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"Seek not to follow in the footsteps of the men of old; seek what they sought."
--Basho