The phrase "a certain peace" is correct and usable in written English.
It can be used to describe a specific, often elusive, feeling of tranquility or calmness that one experiences in a particular situation.
Example: "After a long day of work, she found a certain peace in the quiet of her garden."
Alternatives: "a particular calm" or "a specific tranquility."
"And now something is over, we don't know exactly what, but it may allow us a certain peace, I think.
Bailey exudes, in the words of the fashion photographer Mario Testino, "a certain peace — you never really see him lose control, get annoyed, get hassled".
"A certain peace and a joy came over me last year that I don't know where it came from," he said.
The neatly clipped bushes along a winding lane of Les Caillols, a low-income neighborhood on the northern edge of this city, suggest a certain peace and order.
After all, she said, the foundation of the Algerian government is its longstanding defeat of Islamist militancy and its restoration of a "certain peace" to the country after the civil war during the 1990s, when tens of thousands died.
Having him at such a distinct extreme from everything that I am or want to be or that my people are — that brings a certain peace to me when I see him").
Just because one finds peace in a certain place in a given pose doesn't mean that you will too.
Which is just another way of blaming, and perhaps the best way, because there is solace and a certain stoical peace in blaming everything on the rain, and then blaming something as uncontrollable as the rain on something as indifferent as the Arm of the Lord.
In March 2012 they agreed to end their aggression and, in certain peace zones, hand in their weapons.
The most-debated change by the OECD committee involved the use of ODA to support certain peace and security operations.
By inviting like-minded souls together who can hold a singular vision for, say, peace in a certain region, can peace then be experienced in that region?
