>>280162304
I don't think she viewed her as a god or anything like that, but the song shows how much Hatsune treasures Saki to the point she refers to her as something sacred.

That being said:
>今夜 私の神話になって
I'm not sure how to read this in a way that doesn't have sexual implications, even though I'm sure Hatsune quite likely wasn't openly and/or consciously trying to portray sexual desire.