Since as long as we've been human we have sought out a good luck symbol to protect us from all manner of negative influences.
A good luck symbol of any kind is steeped in superstition, and tied to the psyche of mankind. This is because symbols of good luck are symbols of our own hopes, and indications that we are cabable of fearing for our own safety.
There is no harm in adopting a symbol for good luck as long as we realize the power is not in the symbol itself. Rather, the "luck" is in the focus we give to the symbol.
Here are a few of these good luck symbol meanings - adopt them in good health, and know that it is your own perception that leads to protection.