Hope is an abstract concept, which can be shaped in several ways. Emily Dickinson decides to attribute the idea of hope characteristics of a bird, which has feathers and "sings the tune without the words". This beautiful piece of poetry has a bittersweet and hopeful tone. The combination of sadness and happiness is a delicate feature of the poem. We can read about the sweetest song or tuning in contrast with the storm and hard conditions on this planet. However, in spite of the harshness of the world, hope has never "asked a crumb of me" which allows the reader to have a light of hope to face adversities.
It means they are doing road work on one side of the road. The arrow is to show you which direction. The mistake is that they are driving on the construction side.
It was during this struggle that he received a blow on the head which seems to have tipped the whole thing over into violence and the four knights fell on him with their swords. He died later that afternoon on 29 December 1170.