The individual capability to create results cross cultural and stay open & flexible beyond our own cultural preferences, norms & values. If you can't relate to the cultural group you are dealing with, enthusiasm, charm & leadership portfolio doesn't matter, because you are blindsided (Livermore, D. 2015 "Leading with cultural intelligence").
Simply explained as the ability to respond when you left your comfort zone and your expectations fail you. You may question yourself how your profession would look like on the other side of the world? Would that person do the same tasks, work in the same environment and work with the same materials?
Our cultural background influences our navigation to other cultures at 3 levels:
CQ focusses ont these 3 levels.
Erin Meyer's book "The Culture Map" describes this clearly.