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When the foetus is about 2 to 3 months old in the mother's womb, columns of rays of consciousness emitted through the all pervading power of Divine Love, pass through the brain to enlighten it. The shape of the brain being prism-like, the column of rays falling on it gets refracted into four diverse channels corresponding to the four aspects of the nervous system. They are (see the section on Chakras and Channels (http://www.sahajayoga.org/chakrasandsubtlebody/default.asp)):
Sympathetic nervous system - right sideSympathetic nervous system - left sideParasympathetic nervous systemCentral nervous system
The subtle energy enters through the centers in the brain and precipitates on its way to six more centers called chakras. The residual energy then settles down in three and a half coils in the triangular bone placed at the end of the spinal cord (sacrum bone), known as Kundalini. The fundamental of this living force is self-organization, self-regeneration and ascent. Through self-organization it sustains and protects. Self-regeneration is its innate ability to renew, heal, balance and recycle. Ascent is its capacity to transcend the mind and myth and attain collective consciousness."