388. Seven complete weeks, MEANING SEVEN SFIROT OF MALCHUT THAT IS CALLED SHABBAT, WHEN THEY ARE COMPLETED, are expressed by seventy letters OF THE NAME OF AYIN-BET (72). THE MAIN BODY IS SEVENTY, AND TWO EXTRA ARE THE SECRET OF WITNESSES OR SCRIBES. HE EXPLAINS HIS WORDS: When the 72 ascended, they ascended by the letters Vav, DENOTING ZEIR ANPIN, IN ITS CHESED, GVURAH AND TIFERET, which are listed in the portion of Beshalach in the verses, "And the angel...removed...and it came... And Moses stretched out" (Shemot 14:19-21). When the Shechinah receives FROM ZEIR ANPIN and the seven impressions are stamped on Her BY HIM, NAMELY SEVEN COMPLETE SFIROT, THEN seventy imprinted letters OF THE NAME AYIN-BET rise from Her. We have learned that the letters OF THE NAME AYIN-BET ascended through certain marks and hidden ways KNOWN only to truly righteous men, pillars of the world.