She isn't much of an expert on Tevinter out of a profound concern and fear of the darker sides of magic, but Fenris' explanation of them makes it clear enough what their purpose is.

"No, and you shouldn't." As she was sure that this Fenris knew as well as the one that she was acquainted with, a gilded cage was still a cage. They were still being held here against their wills, being fed on by some -- parasitic world. She pauses.

"Would it be too much trouble to accompany me to the living quarters? I think that's as good a place to start as any."