"You don't know my point of view; it's plain enough.
You see, when I delight in these things, I think I delight most in my delight in them.

It means that I am almost having the kind of feeling the fresh American souls had who landed here thirty years ago and revelled in the resemblance to Dickens's characters they met with in the streets, and were historically thrilled by the places where people's heads were chopped off.

Imagine their reflections on Charles I., when they stood in Whitehall gazing on the very spot where that poor last word was uttered--'Remember.' And think of their joy when each crossing sweeper they gave disproportionate largess to, seemed Joe All Alones in the slightest disguise." "You don't mean to say----" Mrs.Worthington was vaguely awakening to the situation.
"That the charm of my visit, to myself, is that I realise that I am rather like that.

I have positively preserved something because I have kept away.

You have been here so often and know things so well, and you were even so sophisticated when you began, that you have never really had the flavours and emotions.