A grand sextile pattern is also often referred to as a Star of David pattern. A grand sextile pattern occurs when 6 planets are placed in 60 degree angles from each other and thus forming the Star of David pattern.
A very rare aspect configuration. Six planets spaced equally around the circle, all in Sextile aspect (60 degrees) to each other.
Grand Sextile - this occurs when six of more planets Sextile each other in a chart wheel, building intensity around creative, harmonious energy.
Grand Trine - this occurs when three planets form three trines in a chart, bringing an abundance of creativity and good luck.
Two Grand Trine interlocked to form a 'Star of David' ...
The formation of a Grand Sextile, and Jupiter in square position to Pluto, are relatively rare events. The Grand Sextile, composed of two interlocking Grand Trines, is considered an exceptionally resourceful pattern that can be equally creative and productive.
Astrological charts show the Concordance alignment contains a near perfect ~/Star of David pattern in the feminine Earth and Water signs, featuring five masculine planets - the Sun, Jupiter, Mars, Saturn and Chiron, along with the Moon.
As I pointed out in The Grand Catharsis, it was my belief that a compendium of planetary events signaled the shift of the Ages from Pisces to Aquarius: Uranus moving into Aquarius in '96, comet Hale Bopp in '97 (and another ~ on January 23, 1997), Neptune into Aquarius in '98, ...
When all the sextile points around the chart are filled with planets you will have a ~.
People who appear to have been born to the good life and to whom "lucky breaks" come regularly and whose good fortune we wish we had, generally have several sextiles in their charts. A ~ is where six conjoining sextiles are formed.
See also: What is the meaning of Sextile, Grand trine, Square, Opposition, Planet?