He could be an enlightened human being and a healer who lived in 1st century BCE ( not very reliable historical records to confirm that. But a records by contemporary historians like Josephus exist.) or he is an allegorical character created by anonymous spiritual masters. The story is really beautiful and every episode in Jesus story and the Book of Revelations can be explained by astrotheology ( Prisca Theology). Gnostic gospels found in Nag Hammadi also gives a deeper insight into Jesus more than the stories in 4 Gospels.