Question regarding visual concentration

["Richard Be X Born" <ribex@...>]

Hi!

I have been practicing the concentration exercises of the astral 
senses, and would like to have something cleared up (or at least a 
second opinion).

In the exercises regarding astral sight, you are to visualize an 
object before you for a certain amount of time first with eyes 
closed, and then with eyes open.

Now I have read somewhere that it helps the concentration immensily 
if you keep the object that you're visualizing in motion, rotating 
it. From my owns trials I can agree that it is much easier to keep 
the object in focus by keeping it in motion.

What I would like a second opinion on, however, is if this is 
something that should be allowed... Is this cheating? 


Well met
Vovin