Hearing Hashem's Kol Throughout the Year (and What We Can Learn from the Story of Guma Aguiar)
The Rambam (Hilchos Teshuva, 3:4) explains the message of the shofar as follows: "Awake, sleepers, from your sleep, amd slumberers from your slumber. Search your deeds, and repent, and remember your Maker...look to your souls and improve your ways and your faults..."
There is a custom to sound the shofar at the conclusion of the Neilah service on Yom Kippur. What is the meaning of this practice? Hasn't our judgment already been sealed at that point? What value, then, does an additional shofar blast add?