Gale ~I'd see a wizard tower. A safe haven for me and a sweetheart-forever. ~I'd see myself in my next incarnation: a living manifestation of Netherese magic. A mythal in my own right. ~I'd see my rivals humbled- jealous of the majesty that I have become. (His first response is loving but the next two seem power hungry. He wants to be almost God like, a mythal. His last one also reveals he has rivals and he wants to be greater than them almost in an envious way.)
So, this was new to me - I hadn't actually seen these ^.^
They seems the sort of dangerous dreams a former archmage might have, and that middle one is particularly concerning, I'll admit. I still feel like I have to say, though - this is literally the only thing I've seen anyone put forward to back up the idea that there's something off about Gale. It can't only be this - there must be *something* else driving people who feel leery of him... I'm still dead curious about what else there is in game that's making people feel that way.
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Looking at all the mirror dialogues, it gives me a feeling like this may be a future echo of the different paths we may be able to nudge the companions down or help them choose.
That's true, these answers could be a foreshadow on what path we may lead our companions on, depending on how high or low our influence on them is. I know Larian did say that our relationship with each companion can grow depending on our choices and how we treat each other. It can also influence their decisions.