People in Situ

Uncle, he must be the strangest person in my family, right? Unlike me, he has to go to school every day; unlike his mother, who is busy every day and chased by life; and unlike his father, who always has endless things to worry about. He just needs to be with his grandpa every day. He can eat whatever he wants, play whatever he wants - no one will care about him. But I don't understand why every time we have a family gathering and everyone is chatting, my uncle talks the least, but there is always a light in his eyes that I can't explain. I remember, wasn't that light borrowed long ago? Why are you still here?