How much childlike innocence do you have left?
From looking forward to growing up to fearing growing up, it means that you have really grown up, and your childhood is far away from you. Once upon a time, chasing the blue sky and white clouds, catching butterflies and insects, that was our happiness.
How long has it been since you laughed sincerely? How long has it been since you looked at the blue sky and white clouds? Yes, childhood is gone....