What is the theme in Fiddler Crab by Josephine Jacobsen?

The different level of time is a theme in the poem. In Jacobsen's poem “Fiddler Crab,” time is a principal theme. Time plays a tricky role in the lives of most humans. Frequently, time seems to pass at differing rates. Sometimes it flies by, and at other moments it creeps. When a person looks back on events from the past, some of them seem as if they happened only yesterday, while others seem as if they happened to a different person, in a different life. Oddly, these feelings may not be hinged to events chronologically.