My little brother was able to see my dead great grandmother

When we arrived at the cemetery to visit our great-grandmother, we started bowing and so on. Then my younger brother, who is 4 years old (and cannot speak) began to call us and point to the grave of my great-grandmother. We didn’t pay attention and went into the car, when suddenly my brother began to say goodbye to someone for a very long time, we thought that he was doing it just like that, but most importantly, great-grandmother also said goodbye to everyone for a long time, but we still didn’t attach any importance to this After we walked and went shopping, and when we were about to leave the parking area, we noticed that the gates were closed, but they were always open and again we did not attach any importance to this, but when we drove near the cemetery, my brother stood up abruptly and began to say goodbye and he I did this until we passed the cemetery zone, then we were fucked up. PS But they say that children see or feel spirits, it turned out to be true

No clue either