what one has experienced. But, to add to what I said in my post on
Frodo's dream(s), even "significant" dreams can point backwards. But
there may be a reference forwards here as well: the Hobbits will soon enough be
trapped by another creature in another prison, namely the
Barrow.
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All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
From the ashes a fire shall be woken,
A light from the shadows shall spring;
Renewed shall be blade that was broken,
The crownless again shall be king.