Evil has no visual form. Evil is a concept which is the opposite of what is good and what is right. In order to teach their siblings and the future generation about abhorring evil, our ancestors painted "ugly" visuals about the various forms of evil so that people will get scared about doing evil. So now you have goblins, witches, vampires, white ladies, ghosts, zombies, tiyanaks, and kapres. We are scared about ghosts because our brain has been pre-programmed before that ghosts "look scary". Everything you see that is "scary" is just a product of your imagination.

LUCIFER is a beautiful being. Perhaps the most beautiful being ever created by God. And yet, Lucifer is evil. The DEVIL does not want to scare people. In fact, the DEVIL wants to attract people so that it will have more company away from God.

Why will the devil try to scare you? Try to analyze the logic behind it. The devil wants to make friends with you. The Devil offers you LUST when tsikoteers discuss about Diana Zubiri or the hot mamas; the Devil offers you HATE when tsikoteers discuss about Toyota's In-House Financing scheme on the Fortuner; the Devil offers you VENGEANCE when tsikoteers discuss about carjackings or someone's car getting sideswiped by a jeepney.

So you see, you have been encountering the Devil all this time even here in this very forum, but you have not realized it at all. In fact, you were never scared of it!

Those you "claim" to be "ghosts" or supernatural events, are just natural phenomena that always have a plausible cause-and-effect explanation. You are scared because your brain could not analyze the cause-and-effect behind it. And that doesn't make it evil.