It's Siyavong (and me) being overly poetic/clever due to an aristocratic background... express disappointment at the lack of an answer.
Okay when you explain it like that I totally get it. I certainly welcome the addition of a different "voice" for different characters. In fact it's a welcome addition, and one that's perhaps rarely seen in games unfortunately. I suppose the main issue for me was the out-of-the-blue sort of poetic, wistful self-dialogue, one could say. If the character had more established pattern of speaking that way, so that the reader has come to expect it and therefore is sort of "mentally ready" for it, it might help and - at the risk of beating a dead horse here - could be a great addition to the already great writing.
And indeed maybe you already did that (established this kind of thing as a mannerism of his), but I missed it!