The summary of the Bible of Jewish mysticism, the Tanya: there is a dual reality in the universe, that which is, and that which is experienced; that which is, only G-d! That which is experienced, well you know what you experience. Within man there is two personalities, a desire for G-d, Selflessness, World Peace; and a desire for the instinctive instincts man has, which can get pretty evil if left unchecked.
The method to balance oneself is to contemplate that the only real reality is G-d (Ein Oid Milvadoi) as often as possible, this energy / joy from the understanding of the oneness of reality gives one the ability to conquer their narcissistic tendency.
Tagged: Duel Realities