Personification helps develop meaning in the poem by describing what is happening in the night. It also develops mood and tone by carrying a certain connotation for each word. For example, when the author says "as falls the restful night", the reader feels peaceful because of the word such as falls and restful.
The billows .... sleep.
Personification is when you give a human characteristic to something, in this case, sleep
<span>Hibernation is the animal's way of adaptation in order to be
able conserve energy by staying inactive and lowering its physical activity in
preparation for future purposes say for example a bad weather. Other animals also hibernate in preparation
for a long drought or scarcity of food. They tend to consume a lot of food
before the scarce and will use the accumulated energy during the drought when
there will be no more food to eat. It is a way of recharging themselves.</span>
I believe its c. adjective phrase Because "of a landscape" describes what kind of picture is to be drawn. And Adjectives describe.