I agree with the others, don't treat bigeminy. ...It's some kind of EMS lore that never seems to die that bigeminy is a terribly malignant rhythm and has to be squashed no matter what the consequences.
The meaning of the autumn equinox is intertwined with that of the four points of the year (the two solstices, and the spring equinox), which each mark stages in the esoteric work that begin anew each year, and form a symbolic cross in the wheel of the year, with the sun (Son/Christ) at the center.
Today is the Autumnal Equinox which signals the beginning of Fall in the northern hemisphere (our friends in the southern hemisphere are celebrating the Spring Equinox). On this day there will be an equal amount of light and darkness, and after this day the nights grow longer and we head towards Winter.