Rabbi Chiya tells us that everything and everyone that exists now and that will exist in the future existed before the world began. Some souls are distanced from God before birth and also in this lifetime, although they may repent later and get back their saintly part. Rabbi Chiya says that the two sons of Aaron were righteous, and he cannot understand how God could have wished them to perish considering their own merits, their ancestral merits and the merits of Moses. Rabbi Shimon says that God made sure their souls were not lost, and Pinchas had already been born to house their souls. He also tells us that righteous souls are prepared above and given names before ever they come to this world.