"There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy."
-Hamlet, Act One, Scene Five
This above all: to thine ownself be true, And it must follow, as the night the day, Thou canst not then be false to any man.” - (again with the Hamlet)
Steam rises from the super-heated water in the ground at Yellowstone Lake.
So much is vented that at times it obscures the magnificent huge, blue lake right behind these trees.