You are not here by chance. God created you for a purpose and equipped you with the gifts to fulfill your calling. He gave you gifts to be used to help build up His Church.
That is what the Sound Department is made up of, Christians that want to serve in the church... to help Pastors spread the gospel. You will find that if you use your gift and return the favor that God has blessed you with; God will bless you again and you will grow spiritually, and it can also be a lot of fun!