Kabbalah Library

135. Those four cups on that night represent four redemptions: “And I brought out,” “And I ‎saved,” “And I redeemed,” and “And I took.” The holy coupling on that night is on all sides, ‎both in Hochma and in Hassadim. Also, the coupling is in four knots, which are four degrees, HB ‎TM, which never part from each other when that coupling is present. We ‎awaken in their joy and correspondingly drink four cups because we have been rewarded ‎with them. This is so because one who clings to the illumination of the coupling is rewarded ‎with all four degrees HB TM. This is why this night is different from all other nights, and one ‎should unite the name in everything and rejoice on that night because it is joy above and ‎below.

136. Those four, HB TM, are called “four redemptions,” since this last degree, Malchut, is ‎called “redeemer,” “the redeeming angel.” But she is called “redeemer” only through ‎another degree, a higher one, Tifferet, which stands above her and shines on her. And Tifferet ‎emits light to her only in the two degrees on him, HB, from whom Tifferet ‎receives. It turns out that these four, HB TM, are four redemptions because they are ‎connected in Malchut, who is called “redeemer.”