While psychologists and self-help books offer many theories about man's existential dilemma and pain, Rabbi Kook reveals that the real cause of humanity's suffering stems from man's alienation from God. The solution, he teaches, is t'shuva. While t'shuva is normally translated as penitence or repentance, the root of the Hebrew word t'shuva means "return." T'shuva is a return to the source, to one's roots, to one's deepest inner self. Rabbi Kook writes:"When...