good luck does not last
Proverb meaning that good fortune is fleeting. Literally refers to a poor priest who holds two memorial services close together and can only eat at one of them, illustrating that even a rare chance for a meal may not be repeated.
The proverb 'hinsō no kasane-doki' means that good luck does not last long.
Literally “a poor monk’s overlapping feast days,” picturing a monk who rarely receives a feast invitation but receives two for the same day. The wasted overlap represents good fortune that cannot be fully enjoyed.