Sorrow.
There is a cat in our neighborhood who gave birth to four kittens last year. Around the same time, a cyclone occurred here. So I kept the four kittens in my room for about a month. After a while, they left. Then two of them came back. Permanently. I gave them food, they slept on my bed, ran inside the house. Although I made them leave before I was about to sleep. They were very close to me, especially the brown, male kitten. He died two months ago. He was paralyzed and stopped and eventually died. I didn't cry, or express any emotions. I was numb. But recently I've been feeling very depressed and didn't know why. I keep petting stray cats whenever I see them. I keep opening my balcony door fifteen times a day like I used to before, when the kitten was outside and would run into my home when he saw me. Somehow I managed to figure out that the death of the kitten is the reason for my being depressed, or more depressed than usual. I loved him a lot.