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6 subdivisions of a gate correlating with the 6 lines of the Hexagram; 6 themes that represent and describe the gate's progression or development; the level below gate in Human Design analysis. Each hexagram has six lines. There are 64 hexagrams. There are 384 lines in the Rave I'Ching. 375 of these lines are dualities, whose polarity is expressed through the terms exaltation and detriment, denoting the polarity in the line. When not fixed, there is a flow of energy and influence between the exaltation and the detriment. (see Genetic Continuity)

Each hexagram has six lines. There are 64 hexagrams. There are 384 lines in the Rave I'Ching. 375 of these lines are dualities, whose polarity is expressed through the terms, exalted and Detriment. These terms come from Astrology and in Astrology these terms are synonymous with good and bad. Design has no such morality conditioning these terms. They simply denote the polarity in the line. In subsequent editions of the Rave I'Ching, they will be removed.

In each line, the polarity is associated with a specific planet.

from The Rave I'Ching:
61 Inner Truth
4 - Research. Saturn exalted. The capacity of concentration to explore the depths of inner truth and maximize its application to fundamental principles. Jupiter in detriment. Where the tendency to expansion and integration leads to involving others in the research and may end in a diversity of confusing applications.

In the example above, Saturn is Exalted and Jupiter is in Detriment. In the example the Planet Saturn is positioned in this line of the 61st gate, it automatically activates the Saturn Exalted. In this case only the Saturn information applies and the Jupiter in detriment, does not. If you do not have either of the planets mentioned in a line, then both sets of information apply.

When either the planet Jupiter or Saturn while in transit enters into the 61 hexagram even if it is not in the same line, it will still fix the nature of the line. Not only can a planet influence each gate directly but it can also influence the gate from the other side of the channel through definition. In this example, Jupiter transiting the 24th gate will bring out the Detriment of the 61, 4th line.