天 (and probably meaning heaven where the gods live).
A grounding would be to visit Mount Tai and see the clouds beneath you when the weather conditions are just right. You have the same picture looking out the window of a Boeing 737max8. Anyway the ruler and ruling elites used to perform ceremonies on Mount Tai, poeticly gods living in heaven.
天 looks a bit like the picture postcards of Mount Fuji from various angles.
天 looks a bit like the picture postcards of Mount Fuji from various angles.