I just went through this, and I found it to be an amazing process that guided me to a higher level of consciousness. Very easy, just follow along, and he gives the skeptic in you a chance too
By going through this, I saw how darkworking and lightworking (for those who are concerned) DO lead to the same source, although Genpo Roshi never mentions it. I also saw how subjective reality is ABSOLUTE. It's actually a very intuitive answer that should be experienced first hand.
Probably not permanent, but a step in the right direction until I can stabilize this level of consciousness.
I encourage people to give it a shot, at the very least you lose and hour and a half out of your day. (pick a quiet time where you wont be bothered)
peace and hard love,
-Truefire
PS. for the youtube challenged, here's a link to all of the clips for the big mind process, as well as some lectures I haven't looked at yet.
YouTube - Broadcast Yourself.