The friend within the wolf

I'm a roaring river in the vast land,
wandering in the plain.
I'm running towards the mountain,
looking at the world on its summit.
I become a flying eagle,
 sharp-eyed,
in love with sky and flight.
I'm a brave lioness warrior,
in love with Motherland.
No fear of giants and wilds,
death and nothingness,
the bloody battle with the wolf.
But there is a fear of the friend within the wolf.