Musar к Дварим 5:5

This is the secret dimension of Deut. 5,5: ואנכי עומד בין ה' וביניכם "I stand between G–d and you." It is well known to students of the Kabbalah that the root of אנכי stems from the emanation בינה. We have explained that בינה=יובל=דרור=50, freedom, i.e. גאולה = redemption. When Moses was in Heaven, i.e. had attained the 50th level of בינה, he had a "clear vision." This means that he viewed things through the original light which G–d had withdrawn from earth after Adam's sin. This is another way of explaining that G–d spoke to both Moses and the people of Israel פנים בפנים דבר ה' עמכם, "G–d spoke to you face to face" (Deut 5,4). If the Jewish people were on such a level it suggests that there were no מחיצות, no barriers between them and G–d. How do we explain that Moses is supposed to have provided a barrier between them, i.e. "I was standing between G–d and you?" We must conclude that there was indeed no barrier, that once Moses utilized the original light this removed his presence as a barrier. By receiving the Torah and attaining the above described level of בינה, Moses had fulfilled his mission as the re-incarnation of הבל. He added the letter ה from הבל to his name. He ascended the Mountain which was burning with fire until the very heart of Heaven, i.e. עד ל"ב השמים (Deut 4,11). The word לב is a reference to the total of 32 paths that lead to these insights, the basis of the whole Sefer Yetzirah (chapter 1, section 1) The letter ה which was added to Moses' name further symbolized that he had received and assimilated all the five books of the Torah. I have found the following in the writings of the Arizal: When the Torah quotes Moses saying: בבעלותי ההרה לקחת לוחות האבנים "When I ascended Mountain in order to receive the stone tablets, etc." (Deut 9,9), you can take the first letters of the first three words and construct the acronym הבל. This supports our contention that Moses completed the task of הבל by attaining the fiftieth level of בינה.