Eisav Went to Yishmael to Unite the Two Legs of the Klipah for Walking
As a loyal servant in the presence of his master, it appears that we can embellish the insight of the Megaleh Amukos—that Eisav went to Yishmael to unite their two klipos. We will begin by introducing an important concept from the teachings of the Arizal in Likutei Torah (Ki Seitzei). He asserts that the four galuyos—Bavel, Madai, Yavan, and Edom—represent the structure of a human body from head to toe: Now, galus Bavel corresponds to the head . . . Madai (Medea) and Paras (Persia) correspond to the arms, which are two; Yavan (Greece) corresponds to the body, which is one; and Edom and Yishmael correspond to the thighs, which are two and long.
Thus, we learn an incredible chiddush: The last galus, the one we are currently in, represents the two legs of the klipah—namely, the galus of Edom and the galus of Yishmael. In essence, they support the body of the klipah. Clearly, it is impossible to walk on a single leg; one can only jump or skip. In order to walk, two legs are required. Now, returning to the passuk under discussion: "וילך עשו אל ישמעאל"—it specifically employs the term "וילך", connoting ambulation. In other words, Eisav united with Yishmael to unite the two legs of the klipah. Theoretically, this would enable him to ambulate with two legs to combat Yaakov Avinu.
This provides us with a very nice interpretation of a passuk related to the future geulah (Devarim 32, 35): "לי נקם ושילם לעת תמוט רגלם"—Mine is vengeance, and it will repay at the time their foot will falter. The Ohr HaChaim hakadosh interprets this passuk as follows: “At the time their foot will falter” refers to the mystical ter “the heels of the Mashiach.” This refers to the extraction of the sparks (of kedushah) from the feet of the “samech-mem.” When they are extracted, “the foot of the evildoers (the klipah) will falter.” Because its contact with the thing that supported it will end, as is known to those who are proficient in the hidden wisdom (kabbalah). In other words, when all the sparks of kedushah will be removed from the feet of the klipah, the time of the geulah will arrive, when HKB”H will exact vengeance from the enemies of Yisrael.
According to what we learned from the Arizal, we can interpret this as a reference to the final geulah which joins the two legs of the klipah—Eisav and Yishmael. To them HKB”H says: "לי נקם ושילם"—I will exact vengeance from all the nations of the world in the future for all the blood of my servants that was spilled; "לעת תמוט רגלם"—when I extract the sparks of kedushah from the two legs of the klipah—Eisav and Yishmael—who rule the seventy nations of the world. Then, “their feet will falter.”
