Aharon Hakohen WENT UP to shomayim & then CAME BACK as a gilgul as Shmuel Hanavi. upon being niftar he WENT UP to Shamayim & CAME BACK a second time as a gilgul this time as Ezra Hasofer in the days of the beginning of the 2nd Bais Hamikdosh
as we all know Pinchos the son of Elozor the son of Aharon Hakohen was given the gift of living forever & CAME BACK as Eliyahu Hanavi in the days of Achav on Har Hacarmel. He remains alive today forever and comes to every bris made & will be our leader as we await for mashiach to come, once we do the proper teshuva Hashem awaits for us to do so mashiach can come