Revelation 8:1

WHEN HE [the Lamb] broke open the seventh seal, there was silence for about half an hour in heaven. 

A Half hour is a relatively brief moment in time. So in Heaven there is silence for a brief moment in time right before the seventh seal is broken and Jesus returns.  

Think about right before something really huge is about to finally come together, how we stop to watch it all unfold. The same thing seems to be happening here. The angels have had to been held back, all of Heaven has eagerly been awaiting this event for thousands of years. And now, Jesus is about to take over as the Physical Ruler of the Earth. Jesus is about to begin His thousand year reign: a thousand years of peace, a thousand years of joy, a thousand years of true love governing all of the world. Then after the Millennial Reign, the new Heaven and the new earth will occur. The inhabitants of Heaven know the glory of what is about to happening and their silence speaks loudly!

Then I saw thrones, and sitting on them were those to whom authority to act as judges and to pass sentence was entrusted. Also I saw the souls of those who had been slain with axes [beheaded] for their witnessing to Jesus and [for preaching and testifying] for the Word of God, and who had refused to pay homage to the beast or his statue and had not accepted his mark or permitted it to be stamped on their foreheads or on their hands. And they lived again and ruled with Christ (the Messiah) a thousand years. Revelation 20:4

Then I saw a new sky (heaven) and a new earth, for the former sky and the former earth had passed away (vanished), and there no longer existed any sea. And I saw the holy city, the new Jerusalem, descending out of heaven from God, all arrayed like a bride beautified and adorned for her husband. Then I heard a mighty voice from the throne and I perceived its distinct words, saying, See! The abode of God is with men, and He will live (encamp, tent) among them; and they shall be His people, and God shall personally be with them and be their God. Revelation 21:1-3

2 Then I saw the seven angels who stand before God, and to them were given seven trumpets. 

Now John is going to be shown something different, the seventh seal was the end of the earth as it has been and now John is taken back in time and the seven trumpets are shown to him to further clarify the Revelation of Jesus Christ. Remember that John was told that all things are to be shown us in their entirety. Revelation is not written in one time line, the time line keeps going back on itself to further clarify the Truth of what is going to happen over the last three and a half years of this period of the earths history. 

Trumpets in Bible prophesy represent loud warnings of our Fathers approach, Joshua 6:4-5, Exodus 19:16-17. These are the seven warnings of our Lord’s return.