Sacral

The Sacral centre is one of the nine centres of the Human Design bodygraph. Human Design is a modern esoteric system, originated in 1987 by Ra Uru Hu (born Alan Robert Krakower, 1948-2011), who presented its content as received teaching rather than as an inherited tradition. It is roughly four decades old and is best read as a contemporary synthesis, not as ancient wisdom or established fact. Ra Uru Hu combined four older systems that had never before been joined: the I Ching supplies the sixty-four gates, the Hindu chakra model the nine centres, the Kabbalistic Tree of Life the connecting channels, and Western astrology the method of calculation.

Where the Hindu chakra model it draws on has seven centres, Human Design maps nine, a difference the system explains by a claimed mutation in human form, a claim about the species that has no support outside the system and should be reported as its own, not as fact. In the model the Sacral centre is classed as a "Motor" centre and is the motor of life force, work and reproduction, treated as the engine of vitality and sustainable energy. A centre may be "defined" (consistently active) or "undefined" (open and conditioned by others) in a given chart. These are features of a contemporary esoteric framework dating from 1987, described here as the system presents them.

Sources The Human Design SystemRa Uru Hu (Alan Robert Krakower) with Über den Tellerrand, ein Blick ins Human Design System (HDS)Petra Stute, Virineya Würgler and Johnny Würgler

The Sacral corresponds in position to the second of the classical seven chakras counting upward, and it carries more structural weight in Human Design than any other centre.

What the system builds on it

Whether this centre comes out defined or open in a calculated chart is the single question that separates the largest group of types from the rest. The typology is not evenly balanced across the nine centres: this one does a disproportionate share of the work, and a reader who understands what the system does with this centre understands most of how the classification operates.

That structural role is Human Design's own. The classical chakra scheme has no typology of persons at all and therefore nothing corresponding to it.

The arithmetic of the borrowing

The classical scheme most often cited in modern Western usage has seven centres; the bodygraph has nine. The G or Identity centre and the Spleen have no classical counterpart. The remaining seven correspond by position, though not always by function.

A caution

The sevenfold scheme is one arrangement among several described in Indian tantric traditions, and the version in wide Western circulation is a popular settlement rather than a single original.

Human Design was published by Ra Uru Hu in 1987, and the atlas records it as a contemporary system rather than as inherited material.

Sources Rainbow Body: A History of the Western Chakra System from Blavatsky to BrennanKurt Leland with The Origins of Yoga and Tantra: Indic Religions to the Thirteenth CenturyGeoffrey Samuel, The Human Design SystemRa Uru Hu (Alan Robert Krakower)