we are not alone?

I think you should not let your mind go in this direction.
Because ones you get entangled in such irrelevant, non-scientific beliefs then your time woill go waste in the life.
You should try to learn and think only practical & logical aspects in the life.
A blind faith and follower behavior would make weak in self-confidence.
The personality development now a days has become a prime importance part in carreer making point of view. So try to make yourself a personality which would be admired globaly.

Wish you all the best.

There are so many things in this world, which we cannot understand and explain. They are unexplained yet. All we can do is to believe them. There is great possibility of ghost all around us.

One more thing, which I don't understand, why these ghosts do show up to some people not to all of us and do they have communities also. All this may sounds funny, but its really very mysterious and just attract me to raise questions on them.