Can someone explain mood of sentence begining with " Can I say of..."

A paragraph from Charles Dickens’ David Copperfield:

"…Can I say of her face – altered as I have reason to remember it, perished as I know it is – that it is gone, when here it comes before me at this instant, as distinct as any face that I may choose to look on in a crowded street? Can I say of her innocent and girlish beauty, that it faded, and was no more, when its breath falls on my cheek now, as it fell that night? Can I say she ever changed, when my remembrance brings her back to life, thus only; and, truer to its loving youth than I have been, or man ever is, still holds fast what it cherished then? "