Windows Symbol Analysis

There were shrubberies and big trees, but I remember the clear assurance I felt that none of them concealed him. He was there or was not there: not there if I didn't see him.

You were looking for me out of the window?" I said. "You thought I might be walking in the grounds?"
"Well, you know, I thought someone was"—she never blanched as she smiled out that at me.
Oh, how I looked at her now! "And did you see anyone?"
"Ah, NO!" she returned, almost with the full privilege of childish inconsequence, resentfully, though with a long sweetness in her little drawl of the negative.
At that moment, in the state of my nerves, I absolutely believed she lied…

This inference grew in a few minutes to sharp intensity and seemed bound up with the direct perception that it was positively he who was. The frames and squares of the great window were a kind of image, for him, of a kind of failure. I felt that I saw him, at any rate, shut in or shut out. He was admirable, but not comfortable: I took it in with a throb of hope. Wasn't he looking, through the haunted pane, for something he couldn't see?