I think Master must be afraid that the two of us will be sad when we part, and wants to feel sad alone. Maybe at this time, he is squatting silently somewhere, and then watching my back disappear little by little. To be honest, my heart was heavy and sad. I knelt down towards Master's house and kowtowed to him three times respectfully for the first time.
Later, when I thought about this episode again, I suddenly realized that my sadness was not at all because I was reluctant to leave my master, but because I felt that I would never be able to find an old man who could argue with me when I was bored. Note, it was an old man.