It is easy to follow Him when He leads you into a bright room of joy and love, but He must also, out of this same love, lead you in dank, forlorn places full of the darkest dangers, even through the valley of the shadow of death. We are given the courage to follow in trust in the faith that it is this same One who loves us so dearly, who leads us, guides the events for our good, and stands next to us. The realization of all of this is the main purpose of Chapter 5, as a preparation for the terrible things to follow. These references give us a more complete understanding of the scroll and the events which are about to take place as it is opened. These additional references make clear that the scroll does indeed deal with the final events in this world's history.
Horns are the universal symbol of power and strength.
Christ is Almighty. He was filled with the Holy Spirit and the perfect seven gifts perfectly. History and the ministry of the Word go together to glorify God, even our Lord and Savior Jesus Christ. Those churches which forbid musical instruments should take note of this. It has been said that the best earthly music strives to reproduce the heavenly music.