DEUT265 Read the Shema twice a day. Hashem wants to give His nation, the Jewish people, the merit of accepting upon themselves, each day, morning and night, His kingship and One-ness. Because man is a physical feature, drawn after his material desires and other foolishness of this world, Hashem in His kindness provides us opportunities to elevate ourselves. One example is this command, whose fulfillment requires us to remember Him and concentrate on the concept of His One-ness, on a regular basis, in the evening and in the morning. Saying Shema in the morning helps us to be careful about our deeds throughout the day, and saying it in the evening instills the same care in us for the whole night.