The Lecha Dodi piyyut marks a profound exception in the history of Jewish liturgy. Though originated in the early modern era, in a unique kabbalistic environment it (and the surrounding ceremony of receiving the Shabbat) was accepted by all Jewish streams--Sephardi and Ashkenazi, Orthodox, Conservative, and Reform--as if it had forever been an inherent part of the Tefillah. Even in secular circles in Israel, one might hear the melodies of this piyyut. We will review its biblical origins, visit the fluidic identities of the "she" (and to a certain extent the "he"), and ask about the religious-spiritual quality of the piyyut.