In 5682 (1922), over 90 years ago, the holy Rebbe, Rebbe Nachman of Breslov, zt"l,
sent a unique letter to one of the Breslov chasidim in Tiberias.
The letter is shrouded in mystery and most of it is cryptic, containing many gematrias,
letter transmutations, acronyms, references to Rebbe Nachman's Lessons, and other secret teachings,
and till today no one has fully understood its depth.
In the letter, Rebbe Nachman writes to his follower,
"Regarding you have I said, 'My fire will burn until the coming of the Messiah,'"
informing him that he has chosen him out of all his followers
to be the one to carry the unique light of Breslov into the world.
The Rebbe refers to this follower as, "My cherished disciple," and reveals to him one of the most concealed
and mysterious secrets since the time of Creation:
the holy song upon which the redemption of the Jewish people is dependent,
the Simple, Double, Triple and Quadruple Song:
"Na, Nach, Nachma, Nachman"
(see Likutey Moharan II #67 and Tikuney Zohar #21).
The name of this chasid has since become famous and is referred to by everyone as "the Saba Kadisha,"
the holy grandfather.
He is Rabbi Yisrael Ber Odesser, ob"m.
R' Yisrael Ber passed away about 15 years ago at the age of 106.
His entire life was lived in modesty and humility, fleeing from the slightest manner of honor,
rabbinical status and any other form of social position, as befits a true chasid of Breslov.