My experience

[Tom Howard]

A couple of years ago, visited my friend and his wife at this stilt house. The floor was cracked all the way across. At night with the dim lighting, spirals of rainbow colors about one inch in diameter started appearing on the walls. It looked like each one shined on the wall by a light source. I covered the spirals, but they still shined.
One day I knocked on the door when they were not home. I texted him and he asked me to wait for them. As I'm setting down at their porch, I feel the hair stand up on the back of my neck. I felt a presence in the house, a presence that DID NOT want me there. My friend was late so I left.
I meet up with them a few weeks later. While talking to them, I brought up the house. They seemed like they didn't want to talk about it. Later, while alone with my friend, I asked him about it. He said the last night they were there, the spiral images started to move around the walls and they fled the house and never went back.

[Cosmic Charlie]

many strange things on this planet - you may never know what it was, BUT ask yourself "what did I learn from this ?"