The phrase "aura of calm" is correct and usable in written English.
It can be used to describe a feeling or atmosphere of tranquility and peace that surrounds a person or place.
Example: "As she entered the room, her presence brought an aura of calm that eased everyone's tension."
Alternatives: "sense of tranquility" or "atmosphere of serenity".
Mr. Christopher lent an aura of calm.
This aura of calm contentment engulfing Woods should not be misread, however.
She has an aura of calm well-being, tempered with a wariness of how fragile her life is.
Hongthong is one of the busiest people I've ever met, yet he always has an aura of calm, a ready smile and a kind word".
For a man supposedly gripped by his first leadership crisis and bombarded by conflicting advice from friend and foe, Ed Miliband exudes an extraordinary aura of calm.
Doors bang, delivery carts clatter by, and Mr. Molina might steal a moment to catch up with one of the men who work in the freight hallway, but none of this detract from El Sabroso's distinct aura of calm.
Light and dark woods contrasted, all polished to a high sheen, offering an aura of cleanliness, calm, order and space.
Dressed neatly in a plain red cardigan and a white button-down shirt, her graying hair tied back in a ponytail and her face free of makeup, she projects an aura of contented calm.
And though it has challenged the entire nation's emergency reflexes, perhaps nowhere except in New York, Washington and Trenton has the burden been as great and unrelenting as in Connecticut, which before the death of 94-year-old Ottilie Lundgren last month seemed most notable for its aura of suburban calm in a newly terrorized America.
With her aura of solidity and calm, she suggests a tree that has buried its roots into the stage.
The Rt Rev Richard John Carew Chartres exuded an aura of benign ecclesiastical calm having performed the most dramatic reverse ferret in modern church history.
