12/3 has reference in the tarot to that of the hang man .the keyword here is reversal .

hanging upside down by his foot .the law of reversal is the keynote here reversal from living egocentrically to giving selfless service
to others ..


astrological correspondence  : jupiter (and neptune ). vulcan (2) and mars (1) in unison produce the jupiter (3) influence in this 12/3 number.

jupiter ,as the ruler of sagittarius and the ninth house ,represents expansion through higher education and deeper philosophy.in a 12/3 the purpose of this mental
expansion is enlightenment in the abstract secrets of life.

Thank you for all the information.  You have given me a lot to read and think about.