Which lines from the poem best shape the theme that the memory of something beautiful can bring lasting joy? "continuous as the stars that shine / and twinkle on the milky way," "when all at once i saw a crowd, / a host, of golden daffodils; " "i gazed--and gazed--but little thought / what wealth the show to me had brought: " "they flash upon that inward eye / which is the bliss of solitude,"