Man, your post is VERY good! I agree with most (if not all) of it!
I only would like to add that im one of those who were helped by weed. I tried to empty my mind during several years, with little success... only after i become a regular smoker i could learn how to do it properly. The weed also did make me more aware of my minds workings, so it enabled me to get "outside" of my mind, to "see" how the thoughts appear there, and so to control them better. Also, it increased greatly the connection with my body, so i become more agile, and able to control certain body things, like pain, muscular tension, etc... and surely it increased greatly my spirituality... i already was a bit "zen" before smoking, but now most people thinks im actually a monk... it made me happier, calmer, still less attached to material things, more tolerating, FAR less influenced by society and people around, and even more given to spiritual/metaphysical/phylosophical thoughts than i already was... and a lot of other things that i dont remember right now.
So, for me weed was indeed a GREAT help, and i think it would be a great help for a lot of people too. So, smoke on! :jointsmile::stoned::rastasmoke: