Why is the date Friday the 13th associated with fear and ill karma?

Every time a month's 13th day falls on a Friday, like yesterday, January 13, 2023, the thought occurs.

It's common to cite Friday the 13th to evoke feelings of spookiness or terror or to advise people

The story has been used by the American entertainment business, which releases horror films on certain days.

Regarding Friday's superstition, a well-liked idea claims that Norse mythology is where it first appeared.

According to numerous sources, Friday and the date 13th have each been associated with unfavourable omens

Because 12 is regarded as complete in itself—there are 12 Greek Gods, 12 zodiac signs, 12 months in a year, etc.—13 is frequently regarded as unlucky.