This passage comes from the mouth of a fortune teller. The original words are: the eight characters are destined to be thin, you can scrimp and save, and the years will flow like water, and meditation will be rewarded. This is a woman's predicted life.
Diligent housekeeping, an idiom in China, means managing housework in the spirit of thrift. Solemnly declare: the answer is for reference only, please don't be blindly superstitious.