Twice a day, for two hours either side of high water, the gates of Silloth's dock swing open. For the rest of the day, no ship can safely enter at all. I've come to think that this little harbour on the Solway is one of the best working metaphors I know for something every poet eventually has to reckon with: the difference between freedom and formlessness. The surprising truth is that constraint, properly understood, is not the enemy of good work. It is often the very thing t