It's opined by some that our attraction to celebrating the Dark Side on All Hallows Eve is EEEEEVILLLL -- to which i reply POPPYCOCK. These folks are inclined to be afraid of everything that is "different" from their experience.
Others are more philosophical, but equally wrong IMHO, in assuming we want to be scared as an artificial means of getting an adrenaline fix. They remind me of book-experts of historic costume who have never actually WORN authentic clothing of a period, and therefore have ridiculous notions as to why certain practices existed.
Closer to truth, i believe, is the desire to analyze our fear of death and come to terms with it by plumbing the depths, seeing the worst, understanding it, and thereby removing a lot of the Unknown quantity that causes the uneasiness. We aren't afraid of the dark -- it's what's hidden by the darkness that's scary. If we know what's out there, we're better equipped to deal with it.
Those of us who believe in reincarnation are convinced that we know what's on the other side. By and large, we're not afraid of death, but would dearly love to know more of the DETAILS of what our departed friends are experiencing. We want more insight, and long to communicate.
Dead people are very important to the living! We seek out their writings for access to the wisdom they accrued, for amusement, and insight into the world they walked through, ages before we were born. This doesn't even take into account the longing we have to make one more contact with loved ones we've lost.
Play a game: if you could ask just one question of someone who has passed beyond the veil, who and what would it be? As you are trying to drift off to sleep tonight, ask it. Some remarkable results have been experienced, doing this.