I am not an expert on poetry but I was wondering whether punctuation necessarily indicates a caesura. For instance, when reading some poems, I instinctively ignore commas within lines due to the fast-paced rhythm. Therefore, would that still be considered a caesura or not?
Punctuation that in prose would indicate a pause or a break (as does the end of the line or stanza) cause the reader to pause in poetry. The length of the pause partly depends on the punctuation mark. Obviously, things like inverted commas don't make a reader hesitate. The length of the pause can be partly determined by the metre the poet has set up.