Why does the speaker say, "I shall have to get back behind the pattern when it comes night, and that it hard!"?

In the yellow wallpaper

man vs. nature - first choice

the term that describes the best dear evan hansen

wheres the passage with the idiom underlined

greywater is gently used water from your bathroom sinks, showers, tubs, and washing machines. it is not water that has come into contact with feces, either from the toilet or from washing diapers. greywater may contain traces of dirt, food, grease, hair, and certain household cleaning products.