From: "Prof. Aryeh A. Frimer" Does any know of a source for breast-beating during vidui. It is an almost universal concept - but where did it begin in Jewish sources? >> See the Magen Avrohom, Hil' YK (607:3).. "..veyakeh be'egrof al hachozeh (Kisvei Ho'Ari). UbeMidrash Koheles eesa, sheyakeh al halev lomar: "ato garamta li... SBA