A happening beyond expectation is a surprise and a magic. Children are interested in magic. They want excitement through surprises. Magic gives a relaxation to elders. If they know science behind it they will enjoy the art of the magician. Otherwise they feel the surprise and excitement.
To divert children from odd things and get their attention towards studies, magics do help their parents. But elders wait and expect magics when they are in troubles and do not find ways and means to come out.
It is a word which has no constructive and destructive features but liked and welcomed by each and everyone. It is a non-existing super natural expectation.