This is Joseph Campbell in "The Hero With a Thousand Faces:" "The mighty hero of extraordinary powers - able to lift Mount Govardhan on a finger, and to fill himself with the terrible glory of the universe - is each of us: not the physical self visible in the mirror, but the King within."
That reminded me of this from Jimi Hendrix: "Well I stand up next to a mountain, chop it down with the edge of my hand... I'm a Voodoo Child..."
And this: