We all know what our characters look like, and how they sound, right? So, I've had this picture of Bel in my head, and I know exactly what her voice sounds like (she's a professional singer). And then YouTube suggested I might like this video.
https://youtu.be/I065oHtGSu8And there she was. MY Bel! OK, she doesn't look exactly the same. Bel's got ivory skin and verdigris eyes, and short hair, because she's a practical young woman. And there's that tiny detail of her being in a wheelchair. But apart from that. This is Bel.
And the voice? Exactly the way I imagined she would sound. That has never happened to me before.