It's like a memory that happened, something happened, like a memory buried somewhere deep in my heart. But the moment I thought about it, I knew it was just a dream. The moment I woke up from the dream, I found my face full of tears. Why, in my memory, there is a child calling me "Mom" coquettishly; why, in my memory, there is a man calling my name affectionately; why, why is my dream so real?