In class on Sunday we were working on this concept of extending upward and downward ,through the spine, at the same time as well as out to the sides. I found it rather fascinating. Got to thinking what if one also extended forward and backward?
Hmmmm... lessee... up, down, right, left, forward, backward: that would be the "six directions", but of course a lot would depend upon how you effected the "extending". Some extending is right; some extending is wrong.