People all over the world want to know how to become lucky.

They use different ways to have good luck and to keep away bad luck.

In the United States, a rabbit's foot is a symbol of good luck,

so many people will carry a man-made one with them in order to have good luck.

Also, when they don't want to have bad luck,

they will say, “Knock on wood,” and do the action at the same time.

They believe the wood spirits will keep them safe.

In Taiwan, the number 4 and the word for death sound similar.

That is why some people don't want to live on the fourth floor of an apartment building.

What's more, most Taiwanese people think

it's important to tidy up their houses before the Chinese New Year.

They believe they can keep bad luck away all year round by doing so.

Some people like to do the above things

because they make them feel safe.

However, does good luck come from what they do,

or does it come from what they believe in?