Music which created this universe, has the power of destroying it too. In the scheme of creation, this universe is merely a passing shadow. Music will one day end this passing shadow, this pageant. This is the reason that at the end of the poem, the poet calls the universe as the crumbling pageant. This would happen on the day of final judgment or the Doom’s day.
It is written in the Bible that Angel Gabriel, will appear with his trumpet on the final day of judgment and blow his trumpet. Gabriel conveys his message through his music that all living beings shall die and that the dead shall come out of their graves and stand before God, who will pronounce his judgment according to the record of good and bad deeds performed by each one of us during our life time.