After using Power of Mantras for about a year, I noticed profound changes taking place in my life; some subtle, some not. I figured the next one I would try is Piercing the Knots. I thought something inside me was stuck and I would give this a try to push things along. I worked at it for about 2 months and nothing happened. I stopped for awhile and worked on other things and came back to this about 6 months later. Used this again for about a month because everything I read said this would change your life. All the sudden, something changed and I found myself not sleeping. I would toss and turn but couldn't close my eyes. This went on for 6 days and with everything I'd read, this was one of the results. On the sixth day, I started playing this again to get this to stop! It did and I think I slept for 2 days after. It might take time to get rid of all those blockages, but once they're gone...OHHH what an interesting ride! Thanks Namadeva Acharya.