Yes, I saw and felt ghosts around in Philippines countless times. I have written here one of the heart-pumping experience I had during high school. Sometimes they just appear like sillouettes, sometimes you could just feel them around like wind, or sometimes they visit you when you're asleep. I'm not an expert but since I have seen and felt them, I can say that they come in many forms or shapes and ways. Some ghosts are bad, some are not. Some are just trying to scare you away, but some are appearing conveying a message so I think it's good to be aware of that. If you try to figure out what they're trying to convey specially if it's your special ones who are dead, then a prayer is powerful way to offer them so they can find their way to where they might belong.