The top of a hundred-foot pole; a Buddhist metaphor for reaching the highest possible level of enlightenment or achievement. Often used with [[百尺竿头，更进一步|百尺竿頭，更進一步|bai3 chi3 gan1 tou2 geng4 jin4 yi1 bu4]] to encourage someone to continue striving for progress even after achieving great success.

to keep working hard and make even more progress after achieving a high level of success; literally "after climbing a hundred feet up a pole, one should take one more step forward"