How is imagery related to nectar in a sieve

For always in literature, imagery plays a huge role in so many aspects. For instance, it sets the atmosphere, tone, mood, which are all necessary to enable the reader to truly immerse himself/herself in the story. It also establishes characterization (inside and outside). Simply put, imagery builds/paints the story in your mind so that you do not just see it, but you hear it, smell it, taste it, and feel it.