Robert Frost, Stopping by the Woods on a Snowy Evening?

How about school bells, and the call of a teacher or a student back to their clroom studies? Or an alarm clock, waking us to our daily duties? In an Every Man sort of way, his 'promises to keep' resonates with us all. We'd like to stop by that little antique store, or pull over and watch the sun set, or the horses playing in a field, and yet, a 'bell' rings - perhaps internally - to remind us that we have miles to go yet, and cannot stop.