What did ponyboy mean when he said it was only yesterday but yesterday was years ago a life time ago?

One element of lyric poetry is personal reflection. which lines in this poem most clearly illustrate that element? i wandered lonely as a cloudby william wordsworthi wandered lonely as a cloudthat floats on high o'er vales and hills, when all at once i saw a crowd, a host, of golden daffodils; beside the lake, beneath the trees, fluttering and dancing in the breeze. continuous as the stars that shineand twinkle on the milky way. they stretched in never-ending linealong the margin of a bay: ten thousand saw i at a glance, tossing their heads in sprightly dance. the waves beside them danced; but theyout-did the sparkling waves in glee: a poet could not but be gay. in such a jocund company: i gazed and gazed—but little thoughtwhat wealth the show to me had brought: for oft, when on my couch i liein vacant or in pensive mood, they flash upon that inward eyewhich is the bliss of solitude; and then my heart with pleasure fills, and dances with the daffodils.