In "1984" what is the significance of the second stanza of the woman's song outside of Winston's window? Book 2, Chapter 4

The song
thathears the prole woman singing out of the window of Mr. Charrington's rented room could mean
a variety of different things.  The first stanza refers to the power of a mere glance in
stirring up dreams and emotions--this ties in to Winston's thoughts and feelings about . 
O'Brien merely glanced at him, but in that glance, he sensed that O'Brien knew things, things
about the rebellion, about how to lash out against the party, and that he felt the same way that
Winston did.  That hope was enough to haunt his dreams and stir his excitement quite a
bit.

The second stanza is a bit more vague, and could refer to a number of
things. ...