Can the relationship between brother and sister really be connected?

I think so, too. My brother and I are very close. If he is sad, I will be sad, too. If he is sad, I will be sad, too. If he is happy, I am happy. Once again, when we were playing poker, we suddenly felt inexplicable heartache. After a few seconds, my brother cried. My heart trembled when he cried. My heart seems to be connected with him, and there will be induction.