The theming is great, the writing is evocative and inspiring. The pilgrimage has such cool ideas. Every entry on the encounter table is interesting.
The one struggle I would have when running it is how open to be about the trials. When entering a room do the PCs know what the trial is? Or do they need to intuit it?
For example, the hall of true names: assuming you’re not meant to tell the PCs what the trial is, I’m not sure I’d know what to do. I see tablets with names, a fresh tablet and stylus. I guess it’s obvious to write a name. The plaque at the entrance said “don’t speak your true name unless commanded”, though. Writing isn’t speaking but is it worth the risk? I feel like my players would spend 45 minutes hemming and hawing.
My gut would say to tell them what the surface level of the trial is. Then the interesting thing is them choosing whether to do it in good faith or try to bypass it. I’m just unclear on if that’s the intention.