In your rocking-chair, by your window dreaming, shall you long,

In your rocking-chair, by your window dreaming, shall you long, alone. In your rocking-chair, by your window, shall you dream such happiness as you may never feel, （from 'Theodore Dreiser's Sister Carrie）
What idea can you draw from the “rocking-chair"?
【正确答案】：A.The rocking-chair is a symbol standing for fate. It is like a cradle that makes one feel peaceful.
B. It is also like a tide that ever goes on with life, the destiny of which is uncertain. (p541)