A Dream Within a Dream Philosophical Viewpoints: Skepticism Quotes
How we cite our quotes: (Line)
Thus much let me avow— (3)
"Avow" is an important word here. The speaker wishes to make a strong declaration of fact, which suggests that he wants to be certain, rather than skeptical, about something.
You are not wrong, who deem
That my days have been a dream (4-5)
The speaker doesn't say that the woman is right, only that she is not wrong. The speaker seems unwilling to accept the skeptical position that life is all a big dream. There's a wee bit of hesitation there.