[Yusuke wants to--to be able to create a piece that stirs emotions like Sayuri? It would be his lifelong achievement.]

Yes, that's right.

...Perhaps no-one will ever discover what Sayuri's expression means, besides us. It will always be interesting to hear how people perceive her.

[Interpretation's just another form of art. Witnessing debate, wondering what does this mean? is as fascinating as already knowing the meaning.]