The second stanza starts with an arresting personification but quickly descends into yet another self - congratulatory emotional gesture: (firstthings.com)
Now these could be any sort of selfish ways that leave the narrator waiting for her and spending a number of nights alone, but here's a further interpretation: just as he initially seems to affirm the touted hippie embrace of fraternal love with the second stanza's yeah, he initially seems to affirm the expected hippie acceptance of open - relationships with the first stanza's yeah. (firstthings.com)
The second stanza, one long sentence, propels us toward the culminating lines of the poem to learn what the people see: «There in the sudden blackness of the black pall / Of nothing, nothing, nothing — nothing at all.» (religion-online.org)