(Just a little story) What is Superstition ??

My teacher asked to me about the superstition, and she also told a lot of about that. I responded that it's unbelievable. Superstition is something people believe without proof and can often times it affects their lives. I think, it is something irrational. Many people in the world have their superstitions. Such things like amulet, heirloom and keris are half of superstitions.
When another teacher asked me ,"Do you believe in supernatural?". I answered ,"yes, I do but kind of supernatural I believe is genie, I have no belief  in other kinds". He asked again "Do you believe in superstitions and is there any superstition you have?". I said "Personally, I don't believe in superstition because it's non sense, but surrounding me have things like that. I live in Kalimantan while actually my parents is arrived from Java. We are truly Javanese. All of us are not superstitious. We have faith in God, Allah SWT.