All of creation resonates with the number seven—the number of creation, the Shabbat (Sabbath), and Divine conduct. But when seven rises and is multiplied by itself three times—seven, seven, seven—a different light is revealed, a light without fracture, only a perfection that transcends nature. This is the secret of the soul that yearns to be included in the Supernal Unity, where the firmaments, rivers, and nations all sing one melody together. And when a person truly engages in Torah, he is included in that same light—the light of 343—and prepares the vessels for the revelation of the future light, like the light of the seven days, the light of the Geulah (Redemption).

Tuesday, 14th of Sivan 5785 – The Daily Chizuk (strengthening) from the Gaon and Tzaddik, Rabbi Eliezer Berland shlit"a (may he live long and good days):

There is 7 - 7 - 7; there are 7 climates, 7 rivers, 7 nations, and 7 heavens. Everything is 7 times 7 times 7—when a person studies, he is included in 7 - 7 - 7, because he is "seven pipes" (Zechariah 4:2). "And its seven lamps upon it, seven and seven pipes," 7 * 7 * 7 = 343. This is written in the book of Samuel, "And as the light of the morning when the sun rises" (2 Samuel 23:4).

We are speaking about 7 - 7 - 7. Here, in the Book of Bamidbar (Numbers) in Parshat Behaalotecha, it is written about the 12 silver bowls (the gifts of the princes to the Mishkan [Tabernacle]), because everything comes to atone for Adam HaRishon (the first man).

After Adam HaRishon (the first man), the world was destroyed—because a person needs to shine light upon his children, to perform Melaveh Malkah (the meal escorting the departure of the Shabbat) with them, and to sing songs with them. Adam HaRishon did not sing; "My harp is turned to mourning, and my flute to the voice of those who weep" (Job 30:31). He did not sing, so the children went out to an evil culture. Billions, seven billion, ten billion people served idols (the descendants of Adam HaRishon). A child is born with a Yetzer Hara (evil inclination), "for the inclination of man's heart is evil from his youth" (Genesis 8:21). The child is a "wild man," a savage; he only wants to commit transgressions. He is willing [to behave] for the sake of his father and mother (to protect himself), but if there is no father and mother, because the parents are divorced, then there is nothing to ground him.

So we bring here three places (of 7 - 7 - 7), "And as the light of the morning when the sun rises" (2 Samuel 23). The fact that the Gemara (Talmud) brings "And as the light of the morning" here—what is "as the light of the morning"? 3 * 7, 7 - 7 - 7 = 343. This will be in the future to come, when everything will shine 7 * 7 * 7 times more, like the light of the seven days. In the future to come, it will be "And as the light of the morning when the sun rises"; there will be a light of fourteen, three hundred and forty-three like the light of the seven days, the light of the seven days.

All of this is written in Yeshayahu (Isaiah 30:26), "And the light of the moon shall be as the light of the sun, and the light of the sun shall be sevenfold, as the light of the seven days." Everything will be sevenfold 7 - 7 - 7, which is 343, and that is the light of the future to come. For every light, there are 343 lights, 7 * 7 * 7. Therefore, the father of Noach (Noah) [Lemech] lived 777 years (Genesis 5:31); this is the highest level.