Answer:
The poet create a peaceful image of a river moving over stones.
Step-by-step explanation:
The poet imagines the river quietly moving ("curling") over stones that are probably positions in the middle and edges of the river's water. The water seems to be making soft noises ('whispers") as it moves around and over the stones in its path. The poet captures a peaceful and calming image. Furthermore, the poet hightens the peacefullness of this image by also calling the stones ("quiet"). This adds extra weight to the poet's intentions of painting a calming scenerio.
Stylistically, the poet employs meter in order to mirror the sound of the river rolling over the stones. The language of phrases such as "curling softly by" and "whispers and dimples" seem to be drawn out, while phrases such as "quiet gray stones" are staccatoed and quick.