Definition of Superstition
Do you know how different superstitions began? Instead of this question, it would be better if it is asked as "Why the superstitions are still continuing?" When we call ourselves as scientifically advanced, why certain things are not being answered with valid explanations? Superstition means only those things which science can not explain? It will be ridiculous to blame the bowler if the batman is unable to take the ball rightly. So, the defining the term in terms of advancement of science may some time appears to be incorrect. The term superstition can therefore be defined as following the things in a routine fashion, even though they are disproved by the science with valid experiments and equations
Born Out of fear
The ancient man was ignorant and at loss to explain the various natural phenomenon like thunder, lightning and climatic changes. He knew little about sun, moon, comets, and meteors. So he formulated his own theories about these celestial bodies and happenings and devised methods to protect him against their adverse effects. However, with the advancement of science, man came to understand many heavenly bodies and their physical characteristics. As a result the old beliefs should have died down. But, somehow they continue to have their hold on people.
A superstition is a belief, usually born out of fear, which is contrary to reason and can not be proved by experience. A comet was a mysterious phenomenon. It was taken to be a sign of imminent plague or war; people also believed that if one looked at the moon for a long time he would get ‘moonstruck’. In fact the word "Lunatic" has been derived from the Latin word "Luna" which means moon.
Since the ancient, people also failed to understand the behavior of animals, they built up superstitions about them. A black cat crossing your path was a sign of bad luck. The hoot of an owl was a sign of approaching death and so on.
Over the centuries, superstition about "lucky" and "unlucky" were also developed.
But, even today in some cultures Black Cat is considered as a good luck and in some cultures it is considered as Bad Luck. What is good luck and what is bad luck has to be viewed with reason and social orientation only.