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TULSĪPRAJNA
The inner world of sex phantasy is as important as the outer one of procreation. Without control of sex, in both its inner and outer manifestations, it is safer to play with dynamite than to pracice the Yoga of meditation (Sri Krishan Prem).
108
Purity of aspiration and the proximity or guidance of a realized Guru are the safeguards on this path. The true meditation comes when the disciple is able to surrender himself to and identify himself with the Atman, which is present as the unchanging witness of every thought and every sensation.
Research Studies
Various research studies have been conducted to measure blood pressure. blood chemistry, skin resistance, heart beat and EEG. A number of scientists are now engaged in studying the physiology and psychology of meditation at many places in the world. Some of the findings of these researches are as follows:
The brain generates tiny amounts of electricity, of the order of a thousandth or even millionth of a volt. This electrical activity of the brain is recovered by EEG in the form of graphs. Such brainwaves have been classified into four distinct categories:
Beta Waves
13-30 cycles per second. The accompanying state of consciousness is tense, awake and active.
Alpha Waves
13-18 cycles per second. The accompanying state of consciousness is relaxed but awake like an idling engine ready to run; more prominent when eyes closed.
Theta Waves
5-7 cycles per second. The accompanying state of consciousness is that of early sleep, hypnosis, dreams.
Delta Waves
0.5-5 cycles per second. The accompanying state of consciousness is that of deep sleep.
There are also some other inconsistent waves. One such wave is Kappa rhythm at 10 cycles per second and originates from temporal foci. There is some
January-March 1993
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