There is a deep order built into creation by God, a pattern of work and then rest. Sowing, growth, harvest, fallow. This takes places on a daily basis, weekly, each year and even across the seasons of a whole life. You could call it the moral order of fruitfulness: we are designed to work but we are also designed to sabbath.
I gave a talk at the February 2019 Christian Medical Fellowship student conference looking in depth at this idea. You can listen to it below:
You can also download the handout: