As you can observe and clearly understand - this word represents a concept that os not only commonly understood in our contemporary culture - by its very nature it is a good tangible word to communicate the obvious to those who can only grasp the intangible . . ..
As a concept, the idea behind this word is not only unclear, it also intangible and seems to defy all attempts to place in a category or context. "What does it really mean?" anyway? . . . it almost as if someone drizzled various colors of paint on a canvas and declared it to be "real". The very idea of trying to truly understand a word with so few dependable references or related contexts is a waste of time.