With the first step, the number of shapes the walk might take is infinite, but then the walk begins to define itself as it goes along, though freedom remains total with each step: any tempting side road can be turned into an impulse, or any wild patch of woods can be explored. The pattern of the walk is to come true, is to be recognized, discovered.
For though we often need to be restored to the small, concrete, limited, and certain, we as often need to be reminded of the large, vague, unlimited, unknown
Even if you walk exactly the same route each time - as with a sonnet - the events along the route cannot be imagined to be the same from day to day, as the poet's health, sight, his anticipations, moods, fears, thoughts cannot be the same.