"Hung up on a Dream"

A couple weeks ago, I realized that the line "I stood astounded staring hard" in "Hung up on a Dream" exhibits consonance.  I thought there was some significance to this, but it took me a while to sort it out.  Because that particular sound doesn't change from word to word, there's almost a sense of the narrator's being frozen in wonder while looking at the "men with flowers resting in their hair."