“Mirror,” the Korean-born Sin Cha Hong’s contribution to the festival, asks “Who Am I?”  When the choreographer first posed the question to herself in 1975, she sought  the tutelage of Shree Raineesh and Ramana Maharshi in India,  where she remained for three years before returning to her adopted home in the U.S.  In “Mirror,” a U.S. premiere, Sin employs her unique blend of American contemporary dance and Asian theatrical values, to also turn the question of “Who am I? “ onto the audience itself.