Re: B&B Group 1 OOC
Generally going by the consensus on the spells, "Interact" Basically means touch usually, unless the illusion is fully auditory. Now I dunno how one recognizes a sound is an illusion but that's how it works. That said generally silent image is plenty for most of the useful things one wishes to do with illusions. The more complicated you get with them, the less effective they usually are. Throw up a wall suddenly or something, unless they are mages and can tell, it's still gonna obscure vision til they touch it. Make it seem like you're a tree. OR there's an array of caltrops they'd have to run through to charge you. As far as spells go, illusions are versatile that way.
In any case it's something Alia literally can never do otherwise.
As for destroying or burying the dream spirit, I doubt Karaz has the gear to collapse the cavern, which may undermine the convent itself, and destroying an inter dimensional spirit is generally not possible for people who can't use planar binding. Can't hit what's on an overlapping existence looking inwards. The only reason we can interact with it at all is due to the drugs causing us to sleep by it.
Now, I'm fine with the smut myself. Fit's the theme the spirit likes. Whether it was wise or not isn't the question at hand though.