The line
"The stout king stands in state
Till a wonder shall appear;"
in the excerpt from the poem Sir Gawain and the Green Knight shows that the knight king is awaiting something miraculous to happen at the Christmas celebration.
I would say that William Blake directs the poem's praise to the gentleness of nature. The book where all these poems are written is called Songs of Innocence, so it is obvious what he is talking about.
B. hints that tell a reader what is going to happen in a story :)
Noise I believe, since that is what is being escaped from by the hiker
