Given a text, write a compressed version of it in a single sentence.

Let us leave this sentence in the middle and reserve the final peroration for a closer look. Here, in the heart of the address, it becomes clear that the key themes of the preamble for the postbellum legal order are three: nation, death, and dedication.
Leave this sentence in the middle & take a closer look. In the heart of the address, the key themes of the preamble for the postbellum legal order are: nation, death, & dedication.