“The day” is not “sunshine,” rather it is the revelation of the spiritual Light to a person. Revelation can happen several times per month, once in a lifetime or at every given second.
Each time revelation is complete and perfect. That’s why a person has to say: “Hear, O Israel! The Lord is our God, the Lord is one” (Deuteronomy 6:4). When a person pronounces these words it means that he attained “the One,” and revealed the Single and the Only Force of Nature.
“Listen” stands for the level of Bina (hearing, ear), “Isra-El” means someone who is heading “straight to the Creator;” Malchut rising to Zeir Anpin (ZA) and then ascending, together with ZA, to Bina is “The Lord is our God, the Lord is one.” In other words, everything merges into Bina and becomes One Whole.
The souls that connect within Malchut bond with ZA and unite with Bina; all of them are included into one word “Oneness.” The word “Oneness” summarizes the whole process of correction redeemed by a person when he reaches a state called “He and His revelation are One” (Hu Ve Shmo Ehad.) This explains why the prayer “Hear, O Israel! The Lord is our God, the Lord is one” became a sign of redemption and fulfillment.
This is how we are supposed to announce that we reached a new state at each level we go through, every “day.” To “speak” means not only to attain, but also be able to express our attainment.
From the 1st part of the Daily Kabbalah Lesson 4/4/10, The Zohar