Born: Egypt, 1406 BCE. / Niftar: Hor HaHar, 1283 BCE.
Prophet, brother of Moshe Rabbeinu and Miriam the Prophetess, the first Kohen Gadol (High Priest). The chariot for the Sephirah of Hod.
The Arizal says that Aharon HaKohen, was Haran (brother of Avraham Avinu) in his previous life. Haran (same letters as Aharon, without the Alef) had to correct an element of idol worship committed by Adam, but he failed. As Aharon he should have also sacrificed his life, like Chur ben Miriam did, in order to stop the sin of the Golden Calf from taking place, in order to do a correction concerning idol worship. Mistakenly, he thought that Chur's death accomplished that. (Sha'ar HaGilgulim page 95, 114)
Though all of his intentions had been pure, trying only to hold off the Erev Rav (Mixed Multitude) long enough to give Moshe a chance to return to the camp and restore order, still, it had been his hand that had worked the gold. Aharon HaKohen was punished for his mistake, to lose all his four sons. Moshe prayed for him and succeeded in saving two of them.
Aharon was later reincarnated as Yaabetz HaShofet (another name for Othniel ben Kenaz), he returned again as Tula ben Puah HaShofet, he reincarnated again in Shmuel HaNavi (Samuel the Prophet), reincarnated again in Aviyah son of King Yerovam, reincarnated again in Uriah HaKohen (who was killed by King Yehoyakim, and by that was atoned for having to be killed in the Golden Calf incident) and reincarnated again in Zechariah HaNavi. (Shaar HaGilgulim, Hakdama 33).
Aharon's wife Elisheva was later reincarnated as Batsheva, the soul mate of Dovid HaMelech. (Kisvei HaAri - Shaar HaPsukim, Shmuel II)
