Definition & Meaning of "wrap one's head around something "

What is the origin of the idiom "wrap one's head around something" and when to use it?

The idiom "wrap one's head around something" likely originated from the idea of trying to fully understand or comprehend a complex or difficult concept. In this expression, "head" or "mind" represents one's ability to grasp and mentally process information. It is used when someone is struggling to understand or accept a challenging idea, situation, or concept.