וַיָּקָם בִּלְעָם בַּבֹּקֶר וַיַּחֲבשׁ אֶת אֲתֹנוֹ - במדבר כב, כא
In the morning, Bilaam arose and saddled his donkey..
(Bamidbar 22:21)
From here we see how hatred causes a person to break from convention. Bilaam had many servants at his disposal; yet in his eagerness to go curse Yisrael, he saddled his donkey himself. —Midrash
Bilaam’s hatred of the Jewish people was unfounded. It was Balak, not him, who felt threatened by the approaching Bnei Yisrael. Yet, in his eagerness to curse Bnei Yisrael, Bilaam went against all norms of rational and befitting behavior for a person of his status. He even saddled his own donkey, though he had a retinue of servants for the job. “But Hashem, your G-d, did not want to listen to Bilaam. So Hashem, your G-d, transformed the curse into a blessing for you, because Hashem, your G-d, loves you (Devarim 23:6).” Bilaam’s irrational hate for Bnei Yisrael was utterly transformed into blessings and praises that pronounce and extoll G-d’s fatherly, unconditional and irrational love for the Jewish people.
This explains why the Torah’s foretelling of the ultimate arrival of Moshiach is specifically in the prophecy of Bilaam.
The Talmud (Sanhedrin 97a) states, “Three things catch us unaware: the arrival of the Moshiach, stumbling upon a lost item, and (the bite of) a scorpion.” The precise moment of Moshiach’s arrival can never be known, so we will always be caught off guard, or in the Talmud’s words, in a state ofHesech Hadaas, absence of cognizance. But according to teachings of Chassidus (Tanya, Igeres Hakodesh 4), this statement is also a depiction of the era of Moshiach: it will be characterized by absence of daas – knowledge and cognizance. This will not be due to the lack of daas, but to thesurpassing of daas. For with the coming of Moshiach, the innermost, essential, and super-rational connection to G-d will be consciously revealed within every Jew; G-dliness that transcends understanding will become our observed reality. It is therefore most fitting that the irrational Bilaam foretell the coming of Moshiach and the future redemption…
—Likutei Sichos vol. 38, pp. 88-89