Neilah (locked) is the concluding service of Yom Kippur. The ark holding the Torah is kept open throughout this service, thus we must stand throughout the service. There is a tone of desperation in the Neilah prayers as this is our last chance to atone before God seals our judgment in the books. The service is sometimes referred to as the closing of the gates. The Neilah service ends with a long blast of the Shofar, reminiscent of the Shofar which was blown in the Temple at the end of Yom Kippur.