The emotional turmoil of early twentieth-century Jewish intellectuals crystallized in the concept of keri'at ha-lev ("the rift in the heart"), a profound cultural malaise that went far beyond traditional faith-versus-reason conflicts. As traditionally educated Jews lost their religious moorings while simultaneously watching Zionist enthusiasm wane, they faced an unprecedented crisis of identity that dominated Hebrew journalism of the period. Through textual analysis and comparative methods, this research reveals how key thinkers like Micah Yosef Berdyczewski and Shay Ish Hurwitz responded differently to this cultural disorientation. While Joseph Klausner reduced the phenomenon to an intellectual clash between Jewish particularism and universal values, Yehezkel Kaufmann recognized its deeper emotional dimensions. Berdyczewski chose to expose rather than reconcile the inherent contradictions, while Hurwitz sought refuge in rational discourse despite similar challenges to conventional Judaism. The findings demonstrate that this modern Jewish "rift in the heart" represented not merely philosophical doubt, but a fundamental struggle with tribal loyalty and inherited cultural burdens in a post-supernatural age. This ambivalence reflected the broader disorientation of Jewish intellectuals caught between an irreplaceable but burdensome past and an uncertain cultural future.