What are the motifs in Stopping by Woods on a Snowy Evening by Robert Frost?

The sound of the senses is a continual motif in many of frost's poems, including this one. "Stopping by Woods on a Snowy Evening" is written in iambic tetrameter. "Iambic" means that each metrical foot contains two syllables. More importantly, we can here the sound of the setting through his vivid words. Consider, for example, the near silent yet peaceful sound in the line, Of easy wind and downy flake.