Think about some things which lies as a mystery .
LIKE- we don't know anything about the life after death.
Mystery thrills. The suspense and mystery hold the persons attention, holds the heart beat, all the concentration and focus of the persons. Many serials on TV, magazines, thriller books, and cinemas do well because of the tense excitement.
When the mystery is unfolded we relieve ourselves, we feel so happy about it.
We do not yet really know a lot about our Earth and Universe. It is still a mystery to us.
i hope this can help u :]