The cling and clang is the metal in my head when I walk

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;

An excerpt from All that is gold does not glitter by J.R.R. Tolkien.