Futility by Wilfred Owen.

Im not really too much into poetry, Im more of a song person, so obviously I found about it through a song that uses the poem as lyrics. I think I somewhat relate to to it, the feeling of futility expressed in it, even tho I havent seen the horrors he must have seen. All of his poetry is quite good, and it was written during WWI and from the trenches which makes it way more powerfull and sad IMO

I also like The Sleeper by Edgar A. Poe but that its mostly because I was a bit of a goth kid and its also been turned into a song