She seems aloof and unapproachable, but is actually easy to get along with.
Tips
history
Traces to Han-dynasty statesman Jia Yi's (贾谊) 《陈政事疏》: 高者难攀,卑者易陵 — 'What is high is hard to climb; what is low is easy to overrun.'
usage
Two main targets: (1) goals/prices/standards that feel impossibly high; (2) people who seem aloof or socially out-of-reach. Compare with 望尘莫及 (can't even keep up with the dust).