Acquainted with the Night

Though a morbid subject, I actually enjoyed Robert Frost's Acquainted with the Night.   After going over poetry for multiple weeks, the first thing that I noticed was that this was a sonnet.  I also noticed that the first and third line of every stanza besides that last one had a rhyming pattern to it.  

Referring to question one, I believer that the purpose of the walking at night is to see if anyone will come after him.  "But not to call me back or say good-by"(Frost 976).  This significance of this quote is that it states the purpose of the late night walks that this speaker takes.  For most, the night represents a sense of hostile solitude.  Humans naturally relate the world of the unknown as potentially hostile.  The night allows the purpose to be exemplified because walking around alone at night never seems like the best idea and the walker obviously knows that.  The night, for the speaker, really does isolate him for the society that he lives in.  When he does come into contact with another person, it states that he simply keeps his head down and keeps moving.