Анна Каренина (I)

[...] Among Seryozha’s favorite occupations was searching for his mother during his walks. He did not believe in death generally, and in her death in particular, in spite of what Lidia Ivanovna had told him and his father had confirmed, and it was just because of that, and after he had been told she was dead, that he had begun looking for her when out for a walk. Every woman of full, graceful figure with dark hair was his mother. At the sight of such a woman such a feeling of tenderness was stirred within him that his breath failed him, and tears came into his eyes. And he was on the tiptoe of expectation that she would come up to him, would lift her veil. All her face would be visible, she would smile, she would hug him, he would sniff her fragrance, feel the softness of her arms, and cry with happiness, just as he had one evening lain on her lap while she tickled him, and he laughed and bit her white, ringcovered fingers. Later, when he accidentally learned from his old nurse that his mother was not dead, and his father and Lidia Ivanovna had explained to him that she was dead to him because she was wicked (which he could not possibly believe, because he loved her), he went on seeking her and expecting her in the same way. That day in the public gardens there had been a lady in a lilac veil, whom he had watched with a throbbing heart, believing it to be she as she came towards them along the path. The lady had not come up to them, but had disappeared somewhere. That day, more intensely than ever, Seryozha felt a rush of love for her, and now, waiting for his father, he forgot everything, and cut all round the edge of the table with his penknife, staring straight before him with sparkling eyes and dreaming of her. [...]

L. TOLSTOY, Anna Karenina (1878)

Part V, Chapter XVII (pp. 665-666)