The pious and holy R' Yisrael Abuchatzeira known as the Baba Sali once wrote a letter to the Lubavitcher Rebbe. In the letter, the Baba Sali asks the Rebbe whether to move to live with him in the United States. He begins: לכבוד קודש הקודשים, עמוד העולם, אור ישראל ותורתו, שלא קם כמותו, שר התורה והוראה, אהוב בשמים ובארץ, מורנו ורבינו הרב מנחם מענדל מליובאוויטש, הנני עבדך הקטן ישראל, “In honor of the Holy of Holies, the pillar of the world, the light of the Jewish people and its Torah, the like of whom has never arisen, the minister of Torah and teaching, beloved in heaven and on earth, our teacher and rabbi R' Menachem Mendel of Lubavitcher, I am your little servant, Yisrael.” Then he writes, “I emigrated from Morocco to Eretz Yisrael, and people here have not given me any peace; they come to me at all hours of the day and night, and I am unable to serve Hashem as I was in the past, where days and nights I wasn’t mevatel Torah even for a moment. And now I am asking if I can come to you in the United States to live with you in a place close by, and hide from the eyes of everyone. I have taken upon myself that that which our great teacher (referring to the Lubavitcher Rebbe) instructs me to do I will do since he is the pillar of the world and that’s what they proclaimed in the Heavens.”
After the Lubavitcher Rebbe begins his response with the exalted praise of הרב הגאון, הרב החסיד, בנם של קדושי עליון, ענף עץ אבות, מנהל עדתו במישרים, בר אוריין ובר אבהן שלשלת היוחסין כו’ וכו’ מורנו הרב רבי ישראל שליט”א..., he writes to the Baba Sali in third person out of great respect for him, “Since Hashem honored you to be a leader among the Jewish people whose voice is heard by hundreds and thousands, it is certain that you have also been given the powers... (כיון שזיכה ה’ יתברך את כבוד הדר גאונו להיות איש כללי ומנהיג בישראל, אשר מאות ואלפים נשמעים לקולו, הנה בטוח שניתנו לו גם כן הכוחות). Since you are in close proximity to the places where our Sefardic brothers are, who are thirsty for the word of Hashem and eager to receive instructions in Avodas Hashem, and to accept ol malchus shamayim (the yoke of the kingdom of heaven) and the yoke of Torah and mitzvos, this is your tafkid (role), obligation and privilege. A great and immense privilege has fallen in your portion, where you will use the talents and segulos that Hashem has bestowed upon you, and the treasures of kings that were handed down to you by your holy ancestors generation after generation...”