A melody, niggun, composed by Rabbi Schneur Zalman of Liadi, the first Chabad rebbe. The song has four stanzas, corresponding to the four spiritual worlds, Atzilut, Beriah, Yetzirah, and Asiyah. Each stanza is intended to elevate the singer and listener to the next spiritual realm.
Due to its holiness, this special melody is sung only on special occasions and dates.
Rabbi Shneur Zalman of Liadi