3/20/21 is Vernal equinox for the Northern Hemisphere, Autumnal equinox for the Southern.
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Great pyramid of Giza tracks this on top 8 sides (yes 8 not 4) exactly due to perfect orientation of True North the builders were able to align to, and the Sun's shadow on the equinox is how they were able to achieve True North in the 1st place.
So it is not 4 sided, but 8, or rather 9 sided vs. 5 if you include the bottom (assuming it's flat, or potentially 12 sided if the bottom half is an inverted pyramid that is 4 sided or 16 total if the bottom is also 8 sided).
What happens when you face True North in a vessle that creates high frequency resonant energy around you and around itself? Good stuff... :)
Some of my favorite tidbits of my little 2.5 decade Truth journey so far. You probably already knew this - but if not, hope you enjoy.
Most of all, have a great time enjoying the equinox. Maybe do some grounding, bare feet to the earth and feel the sun with closed eyes.