Even if it's just a single coin, the idea is that the receiver will always have good luck and financial prosperity. Many cultures believe that mirrors are one of the unluckiest gifts one can receive. Especially in Asian belief systems, mirrors are thought to invite harmful spirits into the life of the recipient.

Which gifts should not be given?

To be sure you're not the person who spoils the holiday, avoid giving these 10 items as gifts.

Is it bad luck to have a mirror?

To damage a mirror was considered so disrespectful that people thought it compelled the gods to rain bad luck on anyone so careless. Around the third century mirrors were being made from glass, and breakage became a lot more commonplace. But the Romans did not believe that the ensuing bad luck would last forever.