What is rigid, blunt, and unyielding will not last. And yet water can overcome rock. The principle of reversion. The arrival at an extreme signals the beginning of decline. Life is cyclic.
Great success is followed by decline.
Great defeat is followed by recovery. Seek the low place and guarantee improvement. Do not overdo. Wu-wei means doing without overdoing, without going too far. Excessive riches and honors are followed by impoverishment and dishonor.