The Hamsa– Up or Down? Which is the Right Way to Wear it?

What is a hamsa hand amulet? 

Most commonly, it is just known as a hamsa or spelled as chamsa, even khamsa.

There are many interpretations of these particular usages.  

The hand is often depicted with an eye in the center of its open palm, presumably to ward off negative energies, including the gaze of envy.