--- In BardonPraxis@yahoogroups.com, 4i81-adq1@s... wrote: > Nice observation Basim. There is a very good explanation of this > phenomenon in Itzhak Bentov's Stalking the Wild Pendulum. See the > appendix on the physio-kundalini syndrome. He notes this experience in > activities that deal with the "accelerating evolution of the nervous > system" through either meditative disciplines or, even scarier, > spontaneous occurrences. When your heart beats, blood is pushed out from > the left ventricle, the aorta actually balloons out and creates a strong > pulse that travels down to a point where there is a bifurcation in the > lower abdomen (suspiciously close to the root chakra.) This is the place > where the aorta forks into two to go to the legs. A part of this > pressure rebounds back to the heart. If the heart beats again before > this signal returns, you get the typical rhythmic, but irregular > vibrations that are characteristic of our normal state. This rebound > also sends vibrations up to the head and whacks the underside, a > sensation which we've normally tuned out. > > > > Now a curious thing happens when you hold your breath. It sets up a > condition where the heart will not beat again until the signal returns > from the bifurcation point. This creates a very strong resonant sine > wave of around 7Hz, which is an entrainment frequency of the brain right > on the threshold of alpha and theta (as well as being the famous > Schumann resonance, the vibrational frequency of our planet.) The > amplitude of this resonance is about 3x more powerful than our regular > state. Another interesting thing is, this resonance also occurs when the > breath is very still and subtle, a place that most experience meditators > are familiar with. > > > > Itzhak goes into more detail and a fascinating discussion of this > model's application in understand some of the mechanism of Kunalini and > qi. I highly recommend his book for those curious about more detail. > > > > -emc > This is very interesting. I've noticed something similar happening in the last few months, often just before entering sleep. A few days ago I was able to delibratly "hold on to it" for quite a while in order to get more familiar with the sensation. Alan