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.
The autumnal equinox is the beginning of astronomical autumn, which ends with the start of winter. In the Northern Hemisphere, that is from around September 22 to about December 22, though it varies from year to year, according to the NOAA. In the Southern Hemisphere, the season runs from about March 20 to June 21. Weather forecasters and some countries define the season as meteorological autumn by the three months in which the weather changes. In the Northern Hemisphere, this is September, October, and November. In the Southern Hemisphere, meteorological autumn occurs in March, April, and May. Falling temperatures. Autumn brings a nip in the air.