The thing is, it is sometimes it is true. When my sister died in a road accident, aged 45. We had a huge response to her death.
Her job heading a heritage orgaisation meant she met a lot of people through work, but we had people coming up to us saying, that in the course of work, people you worked with did die, but they had been shocked to find how utterly devastated they were by my sister's death, because there was just something about her.
Twenty five years after her death I met soneone through a heritage charity I volunteered with, and in conversation it came up that my sister had been the director of this charity. It turned out this man had known her and worked with her and he spoke about her with warmth and enthusiasm, as if he had seen her a month before, Like all the others he said that when ever she came into a meeting or ran an event, something happened. She was not a noisy person, she was quite quiet, but if she was in a room, the whole altmosphere lit up and everyone acted amicably.
Sometimes there are people, who do light up the room when they go in.
For chlldren I think that is always true, they are part of a family, and when they enter the room everyone does focus on them. I know that is true with my grandchildren. they do indeed light up the room when they come into it.