The reason Predestination is scary is because we are sometimes raised into thinking that we can do what we want. But when you turn you life over to God you life is no longer yours. I think Paul is trying to make sure everyone knows that we are predestined that God has already decided were we are going and what we are going to do. The best thing about predestination is the fact that I know God is incontrol and that he isnt going to take me any where that i cant do his work. He may send me some where i dont want to go but as long as i am in his will I will learn to love it