To such things as these you are not used, therefore you do not fancy you understand them.

Neither I nor any man can here help you to understand; but I may, perhaps, help you a little to believe!" He went to the door of the closet, gave a low whistle, and stood listening.

A moment after, I heard, or seemed to hear, a soft whir of wings, and, looking up, saw a white dove perch for an instant on the top of the shelves over the portrait, thence drop to Mr.Raven's shoulder, and lay her head against his cheek.

Only by the motions of their two heads could I tell that they were talking together; I heard nothing.
Neither had I moved my eyes from them, when suddenly she was not there, and Mr.Raven came back to his seat.
"Why did you whistle ?" I asked.

"Surely sound here is not sound there!" "You are right," he answered.