Hey Pretinna,
I want to say a small story.
Once there was a Gurukul(ashram), where students learn from saints(Teachers). One fine morning there was a cat which was wandering here and there. It was causing a nuisance to all. So the Guruji asked to tie it in a corner. What happened from then on ,whenever the classes started, the cat was tied in the corner. This became a practice and people started believing whenever classes were taken a cat needs to be tied

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Very funny right? This story is to illustrate whatever the things we do/follow, We must know the reason behind it.