From 11:00PM PDT on Friday, July 1 until 5:00AM PDT on Saturday, July 2, the Shmoop engineering elves will be making tweaks and improvements to the site. That means Shmoop will be unavailable for use during that time. Thanks for your patience!
At the end of the poem, the speaker gives up trying to express his amazement in language. The direct spiritual emotion of the final line contrasts with the linguistic fireworks that have built up to it.