Final answer:
Aylmer is hesitant and worried about removing the birthmark.
Step-by-step explanation:
The passage reveals that Aylmer is hesitant and worried about removing the birthmark on Georgiana's cheek. In the dream, as Aylmer attempts to remove the birthmark, the deeper he goes, the deeper the hand sinks, causing him to feel determined to cut or wrench it away. This suggests that Aylmer is conflicted about the birthmark and its removal, fearing potential consequences or harm that may come from trying to remove it.