171. We learned that Rabbi Yosi said: when the priest raises his hands, the people must not look at him, since the Shechinah rests on his hands. Rabbi Yitzchak said: Even so, if they cannot see, what harm is there for them? It is because it is written: "For no man shall see me, and live" (Shemot 33:20). It is only during their lifetime that they cannot see. At their death, they do see. He told him: It is because the Holy Name is alluded to in the fingers of their hands, and a person should have awe. Although they cannot see the Shechinah, they should not look at the hands of the priests, so the people should not be impudent towards the Shechinah.
172. We learned that when the priest raises his hands, the people must sit in awe and fear, and know that at that time a time of goodwill prevails throughout the worlds, the upper and lower beings are blessed and there is no Judgment among them all. That is the time when the concealed most ancient among the ancient is revealed in Zeir Anpin and peace prevails in all THE WORLDS.
173. (A) Rabbi Shimon said: In the beginning of these three verses, THERE IS Yud, Yud, Yud, meaning the Yud of Yevarechecha (Eng. 'bless you'), Yud of Ya'er (Eng. 'shine upon') and Yud of Yisa (Eng. 'lift up'). They are all SPELLED WITH THIS LETTER to show the perfect Faith, so that whoever needs TO BE BLESSED will be blessed from Atik, WHICH IS THE SECRET OF YUD OF YUD HEI VAV HEI. Yud, Yud, Yud APPEAR THREE TIMES, so that Zeir Anpin shall be blessed from the most ancient AND THE THREE YUD'S CORRESPOND TO THE THREE COLUMNS, AS "BLESS YOU" IS THE RIGHT COLUMN, "SHINE UPON" IS THE LEFT COLUMN AND "LIFT UP" IS THE CENTRAL COLUMN. Therefore, "Hashem bless you" IS ABOVE FOR ZEIR ANPIN, SO IT SHOULD RECEIVE FROM ATIK, "And keep you" is below FOR YISRAEL, and so on all of them.
(B) The Tanna learned before Rabbi Shimon that whoever is distressed in his dream shall come when the priests spread out their hands, and say: Master of the Universe, I am yours and my dreams are yours, etc. What is the reason? It is because Mercy prevails in all the worlds at that time. Whoever will put forth his prayers about his distress, Judgment will turn into Mercy for him.