In this story, the protagonists meet the most handsome man in the world. And knowing that, you are now faced with the task of describing him....um...
...y'see, the thing is that 'handsome' means different things to various people. The so-called 'perfect' for one person's point of view will indicate the exact opposite for another. Just the right height? Too tall or too short. Build? Not muscular enough, or far too cut... And so it goes on down the line. You can describe your idea of the concept, but it won't agree with everyone else's.
Later on, at the dinner party, he plays the most beautiful music ever written. Serves the best food ever cooked which smells like...
...what have you done? How are you supposed to get all this across in a text medium? No description you could ever create would be adequate! And if you somehow managed, whatever results were created only applied to you!
This happens all the time when creating fiction, and not always with positive experiences. The words in the forbidden book will drive the readers mad. Well, you can't exactly give them sample text. A horror beyond what which the eyes can understand? Good luck telling people what that looks like.
So you take the only way out you have. You cheat. You show the reactions to the experience -- but not the experience itself, because that which is beyond description will remain so. On purpose.
After all, shouldn't the readers trust you?
http://tvtropes.org/pmwiki/pmwiki.php/Main/TakeOurWordForIt
Typically right up until you pull this for the fiftieth time, yes.