Rambam’s Shofar: A Call to the Heart, Not to the Heavens
Rambam writes (e.g., Sefer Hamitzvos , Mishneh Torah ) that the mitzvah of shofar lies in hearing it—not in sounding it. That's to say that men don't have an obligation to blow shofar individually (which would only be fulfilled via שומע כתוקע if one is listening to another sound it*) but rather simply to listen to the sound of the shofar (with the caveat that it is blown by someone similarly obligated as well as both the blower and hearer intentionally thinking about connecting with the other). The bracha recited prior to mitzvas shofar is formulated in Mishneh Torah to reflect that conceptualization with the nusach לשמוע—not לתקוע. Of course there's also Rambam's famous lesson on introspection that the Shofar alludes to which too is about what we hear (and internalize)—not what we project to others (also referenced in the Guide to the Perplexed )**. Halachic rationale aside perhaps this is (also) Rambam following his philosophical beliefs. In...