忽痈
[hū yōng]
The term '忽痈' roughly stands for 'Sudden Pain,' implying something unpleasant arises abruptly in life without warning. It may refer not only to physical sudden illness but also psychological shocks or unexpected events, conveying a philosophy that pain or setbacks can happen instantly but must be faced bravely and calmly, showing the holder's resilience against adversity and the unpredictable nature of life.