I like to see it lap the Miles
Brain Snacks: Tasty Tidbits of Knowledge
Emily's father, Edward Dickinson, was instrumental in bringing the railroad to Amherst, MA, and he even led a parade in honor of the first train (source).
It's possible to sing all of Emily Dickinson's poems to the tune of "Amazing Grace" (or, more hilariously, "The Yellow Rose of Texas" or the theme song to Gilligan's Island) (source). See "Best of the Web" for evidence, or try it yourself if you don't believe us!
The original manuscript shows "I like to hear it lap the Miles" as an alternative that Dickinson considered, before settling on the line we're familiar with (source).