Jack Vance again. An old classic. I can still recall when I first read this, sometime in my teens, fresh I think from some Pern-y type stuff, and thought this might be more of the same - not being familiar with Vance at the time. And on a hot summer day I cycled through the English countryside near Berkhamstead till I found a nice empty field and settled down to read.
Oh was I disappointed! The book was completely weird and not at all what I expected. When a book isn't what you expect it is hard to get started. At first you don't realise it isn't what you expect; it just appears as hard to read, and you keep reading on for the familiar bit, or when the story will turn into the rut you were expecting. Eventually you realise and are either liberated, or you throw the book away in disgust.
I, of course, was liberated. This is more splendid Vance-type stuff with a weird situation and a ruthless hero and aliens and the end of times. I won't spoil the story by telling you more; see wiki if you want that or Goodreads for many more reviews.
Does the book have anything to say about the meaning of life, of slavery, or what it is to be a man? The Goodreads folk seem to think so. I confess it never really occurred to me it did. The Languages of Pao does have something to say, sort of; or rather, it is an illustration of a concept. I think Vance is more that than messages.