The upper image is the US Navy zeppelin Shenandoah (commissioned 1923, crashed 1925) with its dock ship Patoka.
* The college widow, in the canoe: What a day! Spring in the air!
Professor Wagstaff: Who, me? I should spring in the air and fall in the lake?
— G., H., C., and Z. Marx, Horse Feathers
It’s not an omen or a emblem, it’s an an insect. It has nothing to do with (for instance) hope. There’s a reason why the sermon is no longer a living literary genre. But