They are "superior" because human beings consider themselves inferior and powerless in the face of the natural phenomena almost all of which either originate from the skies or the result of atmospheric events. Sky is "up there." The force of aerial phenomena is "overwhelming."
There must be "something" or "someone up there doing all this to the earthlings living down on the earth." Furthermore the earthly phenomena like earthquakes, volcanoes, eruptions and subsidences, possibilities, probabilities and chance all come together and create this idea of "superior beings."
