Analysis of The Angel

I dreamt a dream!  What can it mean?
 And that I was a maiden Queen
 Guarded by an Angel mild:
 Witless woe was ne'er beguiled!

And I wept both night and day,
 And he wiped my tears away;
 And I wept both day and night,
 And hid from him my heart's delight.

So he took his wings, and fled;
 Then the morn blushed rosy red.
 I dried my tears, and armed my fears
 With ten-thousand shields and spears.

Soon my Angel came again;
 I was armed, he came in vain;
 For the time of youth was fled,
 And grey hairs were on my head.