Talk to Me: Is the Hand Just a REALLY Dark Metaphor?

Okay guys, I just got out of "Talk to Me" and I'm still seriously messed up. Like, seriously. Ignoring that the jump scares got me good--and they DID--I'm more interested in what the whole "hand" thing REALLY meant. I know the obvious is demonic possession and teenage recklessness, but I think it goes deeper, and I'm wondering if anyone else sees it. Specifically, I'm thinking the hand is a metaphor for addiction. Think about Mia's grief over her mom, right? She's desperate to connect, to feel something other than that pain. And then the hand comes along, promising this intense experience, this brief escape. The high she gets from it, that initial rush of feeling connected, is immediately addictive. And just like with addiction, each subsequent "trip" needs to be more intense to get the same high. Chloe is the key element in the story. She's the one that breaks with the hand when Mia fails to connect with her mother. And then there's the isolation. Mia's pushing away Riley, Jade... everyone who's trying to help her not use the hand. Doesn't that sound familiar? Plus, the hand itself is a physical object, a crutch. It's not a real connection, just an imitation. The whole movie felt like a really visceral, terrifying allegory for addiction, and the consequences of chasing that high. And it's so much more disturbing when you look at it like that because it doesn't just become a "scary movie" it becomes a very grounded horror. I dunno, maybe I'm reading too much into it (film school tends to do that to you, lol). But I think the film makers went really hard with the metaphor. They're too clever in this movie to just have it be the only meaning. What do you guys think? Can you spot symbolism in the film?