Are you asking about our confession or is this a passage ?
(not meaning to take points, i'm sorry, just not sure ?)
Visualizing a sequence of events can give the reader a sense of coherence and harmony in the story that he/she is reading. When events are sequentially arranged, the reader has a clearer picture on what is about to happen in the story that he/she is reading. Aside from this, comprehension will be at par because the events have already been mapped or laid out in the mind.
It's certainly sensory. And it's figurative too. I think I'd pick figurative because the central piece of language is a simile. That's pretty good use of language when you compare the bobbing heads of flowers to helmeted soldiers.
The mood is mostly upbeat. It is also very calming, in the background, there are some girls singing a smooth melody! What I mean by upbeat is that the song use has good instruments to get a good rhythm. While listening to the song you would most likely feel like you would want to move around. It is not the type of song to make you want to "Do the Harlem Shake". The song is also particularly old.
