- rest in something
- rest in something1. to be comfortable in something, such as a chair or a bed. •
I rested in the chair for a while and then got up and made supper.
•I will rest in bed until I feel better.
2. to be at ease in a particular condition or status, such as comfort or comfortable surroundings. •I hope that you can rest in comfort for the rest of the night.
•We rested in the plush surroundings and then went back out into the hot sun to work.
3. [for something] to have its source in something. •The source of her magnetism rests in the way she uses her eyes.
•His skill rests in his thorough training.
Dictionary of American idioms. 2013.