As a man of sin banished to this earthly world, I have to go to the great length to find the way home, and return to the paradise at the other end of the umbilical cord.

For in that day every man shall cast away his idols of silver, and his idols of gold, which your own hands have made unto you for a sin.

The priest is to sacrifice them, the one for a sin offering and the other for a burnt offering. In this way he will make atonement before the Lord for the man because of his discharge.