These stanzas from Thomas Traherne’s “Walking” seem to resonate with the idea of small stones:
To walk abroad is, not with eyes,But thoughts, the fields to see and prize;Else may the silent feet,Like logs of wood,Move up and down, and see no goodNor joy nor glory meet.…
To walk is by a thought to go;To move in spirit to and fro;To mind the good we see;To taste the sweet;Observing all the things we meetHow choice and rich they be.