something and ghosts are something else. Jin are just like human, but they are created from fire and they can like brit said take any form they want. One major different between them and ghosts is, they can hurt you and do you bad where ghosts can't.

There is the good and the bad there, so you just need to be careful They would try to harm you if you offended them only ... so never think of throwing stones on the black cats and dogs ... they like to take these forms the most ... seriously, no kidding here ...

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)