The phrase is an English proverb that suggests that changing one's routine or environment can be as beneficial and refreshing as taking a break or getting some rest, in a fairly straightforward literal way, the notion that a change from one’s regular occupation is as restorative as a holiday.
The exact origin of this phrase is unclear, as it is an old proverb that has been in use for many years. It is likely that it emerged from observations of human behavior and experiences over time.