Instead of answering her as soon as he saw her hair grow electric, her face more vivid, her eyes like lightning, her body restless and jerky like a racehorse's, he retired behind this wall of objective understanding, this gentle testing and acceptance of her, just as one watches an animal in the zoo and smiles at his antics, but is not drawn into this mood. It was this which left Lilith in a state of isolation - indeed, like a wild animal in an absolute desert.