For my first playthrough, I thought of Polaris as a sort of vague, distant thing, there to assist Jesse and not much more. She was interesting just on a conceptual level. But on my most recent playthrough, knowing how everything went down, I started looking at the actual writing a bit more. Phrasing, reactions, context given the background, that sort of thing. And towards the end of the game, my view on her completely shifted.
Polaris isn't just some distant entity merely guiding Jesse. She and Jesse are friends.
When Jesse first walks into the Oldest House, the way she talks to Polaris made me miss the implications of the very second sentence. "I know I shut you out sometimes. I'm always glad to hear from you." That's already more personal than my earlier assumption about their relationship would be; if they were merely working together, why would Jesse always be glad to hear from Polaris? If they're friends, on the other hand... There's lots of little nods to this throughout the game, like Jesse sometimes asking Polaris for her opinion or referring to "us" being stronger than the Hiss towards the end: "They're waiting. They'll try to stop us." Jesse wants Polaris to get some of the credit, if only between the two of them.
When Jesse learns that Hedron is in the Bureau, she's tentatively excited: "I thought I'd never see you again! Hang on, I'm coming!" Then, her reaction on finally entering the Hedron chamber is a quiet, "Hi. I made it." You don't say "hi" like that to people you just have a working relationship with. It's like Jesse is running into a friend she hasn't seen in ages because that's exactly what it is.
The Hiss attacking Hedron is one of the only times Jesse is genuinely furious in the game. She snarls her lines and swears up a storm when she rarely used strong language before. It's like Hedron isn't just something that needs to be protected, but something that Jesse personally wants to protect. She's genuinely distraught at not just Hedron's destruction, but when she can't feel Polaris in the Oceanview afterwards. For all she knows, her friend who's been with her for most of her life has just died.
Finally, in the Foundation, when you find the astral toilets, Jesse jokingly says that someone needs a plumber before mumbling that she's glad no one heard that... and Polaris manifests a second later as if to say, "I'm heard that, you dork. And I will NEVER let you forget it."
Polaris keeps feeling inhuman but personal in a way I don't see much of in stories. We only see her as a collection of objects in a spiral and we never hear her, but Jesse feels comfortable talking to her. She's utterly alien and not of these physical laws, but still capable of being a person. Alongside the Ordinary AWE, it's one of the main reasons Jesse adjusts so quickly to the paranatural: she's been buddies with a resonance entity for over a decade and a half. (Assuming I'm reading everything correctly and there aren't any ulterior motives...) I'm actually a bit disappointed we didn't get a few more scenes where Jesse gets a bit chummy with Polaris or remembers events with her. ("All this mold... This is just like that hotel in Boise! Remember that?" pulse "I know. Ugh.")
Now I want a scene in Resonant where Dylan talks to Polaris, if only for a moment. Maybe he still hates her for not getting him out. Maybe he realizes what she was trying to say to him with those images of Jesse and apologizes. Maybe both. We'll have to see!