https://www.universallighthouseblog.com/post/the-theory-the-cia-wanted-to-hide (emphasis mine)" In his 1977 book, Stalking the Wild Pendulum: On the Mechanics of Consciousness, he wrote that "consciousness permeates everything". He was a very inventive person, but also a person who was not the type you would normally think would be an inventor. He was a very spiritual person, he did meditation, he was a very soft-spoken person. He was interested in how the brain worked and actually attached electrodes to his head which were connected to a function generator in which he could change the wave shape and the power and learned about how the brain interprets these different frequencies.[6] — John Abele Bentov's invention was a seismographic device to record the heartbeat, in particular the aorta's reverberations. Marc Seifer described the results: "During NORMAL BREATHING, the reverberations in the aorta ARE OUT OF PHASE with the heartbeat and the system is inharmonious. However, during meditation and when the breath IS HELD, the echo off the bifurcation of the aorta (where the aorta forks at the pelvis to go into each leg) is in resonance with the heartbeat and the system becomes synchronized, thus utilizing a minimum amount of energy. This resonant beat is approximately seven cycles per minute, which corresponds not only to the alpha rhythm of the brain but also to the low-level magnetic pulsations of the Earth."[8]" In other words, this is why we're told to hold the breath and focus on the dan tien, right above where the life force and blood go into the legs. Try it right now, you'll notice after holding in and out a few times suddenly you relax - somewhat proving the point here that the normal breath is out of phase, this is something again we're not taught and we don't really innerstand. We need to GET IN phase, and all that's required is "self-control".