I don't believe that people die and come back as spirits, but I think there might be some unexplained events.
We will never fully explain the world by appealing to something outside it that must simply be accepted on faith, be it an unexplained God or an unexplained set of mathematical laws.
Big emotions that are unexplained are really scary. At least to me.
My feeling is that scientific method has the power to account for and interlink all phenomena in the universe, including its origin, using the laws of nature. But that still leaves the laws unexplained.
Everyone has a side to them that's kind of unexplained and feels misunderstood.
Giving frees us from the familiar territory of our own needs by opening our mind to the unexplained worlds occupied by the needs of others.
Perhaps, more importantly, I think that most human beings realise only a fraction of the true potential of their minds, so the spiritual or mystical, the things which remain mysterious or unexplained have always drawn me to include them in any scheme for a novel.
Papa continually emphasizes how much remains unexplained. With the other psychoanalytic writers, everything is always so known and fixed.
I'm fascinated by anything that deals with the unexplained. I love any show that totally makes me want to know more. How did they build these pyramids? Why did they find these carvings that look like spaceships?