Ok Shawn,
Perhaps 'stirring' suggests too much of a random mixing of energy.
I understand now from your reply that this exercise assists the energy to move along a path it is already on (circulating around the front and back channels).
Does it follow that without this exercise the movement of energy is likely to get sluggish and thereby possibly cause a blockage in any part of the body?
So the advise is "Keep it Moving" or (to use your analagy) the river will surely stagnate!
Thank you for taking the time to reply to a raw, novice student.
