This happens mostly to people who are extremely susceptible to suggestion in the first place. Like Democrats...
It's probably similar to 'synchronicity'. I've never worked a Ouija board, but I imagine that most of the time it spells out silly stuff. When something intelligible finally comes out, then the person gives it a special significance.
Just like with 'synchronicity' where a person remembers the times that he hears the same number or word twice in the same day, not considering the shear quantity of numbers and words he is exposed to in a single day.
Sad but true. My specialty in research is mind control techniques. It is so easy to guide a person into a trance and have them lose their ability to discern truth from non truth. Even the logical skeptical ones if you know how to do it. You merely cause them to focus inward with their defenses rather than allow them to focus on you.
This is why people were fainting at O’Bummer’s political rallies. Talk about hyper suggestible people.