Astrological sign of a sign are together sufficient to define it, they can be grouped to indicate their symbolism. The first four signs, Aries, Taurus, Gemini and Cancer, form the group of personal signs. The next four signs, Leo, Virgo, Libra and Scorpio form the group of interpersonal signs. The last four signs of the zodiac, Sagittarius, Capricorn, Aquarius and Pisces, form the group of transpersonal signs. Dane Rudhyar presented the tropical zodiac primary factors, used in the curriculum of the RASA School of Astrology. The tropical zodiac is the zodiac of seasonal factors as opposed to the sidereal zodiac (constellation factors).
The Snake and the Crab These portray the crab as honest and plain dealing, drawing the moral that one should be straightforward in behaviour and beware of friendship with those who are not. The story had therefore travelled a long way from being an illustration of hypocritical behaviour. Scholars believe that the fable of "The Two Crabs", alternatively known as "The Young Crab and its Mother" (Perry Index 322), also derives from the original Greek idiom. In this version, a young crab is told to walk straight by its mother and asks for a demonstration of how that is done. The story, recorded by Babrius