a high bar

Origin

The phrase "a high bar" springs directly from the world of athletics, specifically the high jump event. Imagine an athlete preparing to leap over a horizontal bar, its height meticulously measured. The higher that bar is placed, the more difficult and impressive the jump becomes, requiring immense skill, strength, and precision. This literal, physical challenge—clearing an elevated obstacle—easily transitioned into a powerful metaphor for any demanding standard or significant expectation in life, where success means overcoming a substantial challenge.