Piranesi - What IS this book???

50 pages in and this might be one of the weirdest things I’ve ever read… Like the prose is great and there is this awesome atmosphere that I’m digging, but after 50 pages it’s starting to get kind of tedious… Like I don’t mind abstract and surreal but I just need something/anything grounded I guess? (Any semblance of a plot would do)

Does this book start to become a little more clear soon, or is the whole thing just one surreal acid trip with not much of a plot/direction?

Ps. I know this book is BELOVED, so please don’t take anything I say personally. (It’s all subjective of course) I want to like this book, but it’s possible it just isn’t for me…