This book is about our assignment. Once we are saved we come to the place where we've got to realize that it is no longer about us. We are to be salt and light to this scared- lost-and dying world. Being that we were purchased with the price of Christ's blood, then anything that we go through is now no longer in vain. God does not save us to keep us as we were previously, we were told to "Go forth in His mighty name".
Epesians 4:4 I therefore, the prisoner of the Lord, beseech you that ye walk worthy of the vocation wherewith ye are called, 2 With all lowliness and meekness, with longsuffering, forbearing one another in love; 3 Endeavouring to keep the unity of the Spirit in the bond of peace. 4 There is one body, and one Spirit, even as ye are called in one hope of your calling; 5 One Lord, one faith, one baptism, 6 One God and Father of all, who is above all, and through all, and in you all.