Hajj:The annual pilgrimage to Mecca that every able-bodied Muslim is expected to make at least once in their lifetime.
Black Stone (Hajar al-Aswad): An ancient stone embedded in one corner of the Kaaba, believed to have been given by an angel to Prophet Ibrahim (Abraham).
Tawaf: The act of circling around the Kaaba seven times counterclockwise during Hajj or Umrah pilgrimages.