Seems like I've been running into one kind of ghost or another most of my life. Around 16, I saw my friend's Grandfather after he had passed away, a shimmering, but very clear image, outside the house he died in. Like he was taking one last look before moving on.
At the exact moment that my Mother discovered MY grandfather in his bed, I was 30 miles away at work, heard a knock on the glass door, looked up and saw my Mom.
When I opened the door, it was just a co-worker knocking to be let in.
Here in Orange County, up in the hills is a place called Black Star Canyon. There have been spooky stories of strange goings on about that place for a 100 years. So...naturally, it's where EVERY teenager has to go check out!
The stories include strange Satanic rituals held there, Albino creatures, and the two young lovers who committed suicide. I, myself, saw a "floating green mist", and one night a whole group of us got brave enough to drive to the plateau at the top. That's when we saw 2 bright "Orb-like" objects floating down the mountain side by side coming right towards us. (it could NOT have been people with flashlights, because they were moving perfectly smooth) needless to say, we piled into our cars and sped off.
In the mid-seventies, I lived in a haunted house on Catalina Island.
351 Sumner Avenue. Lights would come on at night. Objects would disappear and reappear some place else. We could hear children laughing and running up and down the stairs. My friend's dog would stop at the front door whining and would not come in.
Do I believe in Ghosts or spirits from beyond? You betcha!
As for Bigfoot, haven't seen one yet. And as far as UFO'S & Aliens...
I think I'll save THAT story for another time.