The ground in which one acquires whilst fighting their moody teenage padawan who "sees through the lies of the Jedi" who believes "you underestimate" his "power", believing his power to be greater than the geographical advantage of the superior altitude on which one stands, but however it is the whiny little sith that underestimates the inferior position of the High Ground/ also where one can be seen being dismembered by their former master after declaring there power with the treason they commited.
It's over Ben, I have the high ground" he said whilst looking down on the hate filled enemy that was once his brother.
Obi-wan standing on ground that is of a higher altitude of the opposing Anakin who had the lower, inferior ground which resulted in the one's removal of legs.
'It's over Anakin, I have the high ground!'
'You underestimate my power!!'
'Don't try it!'
*Lightsaber cuts of legs*
*Aghhh, Ow*