The phrase "a sanctum" is correct and usable in written English.
It can be used to refer to a sacred or private place, often associated with religious or spiritual significance.
Example: "The ancient temple served as a sanctum for the worshippers seeking solace and guidance."
Alternatives: "a sanctuary" or "a holy place".
His offices were a sanctum for initiated collectors, curators, critics, and scholars.
There is a sanctum where mathematical sharks apply the laws of probability to the problems of wire installation.
Still, in many ways school is a sanctum: a place in which teenagers can make mistakes, cloistered away from an unforgiving outside world.
The deity resides in a sanctum at the center of the temple and is visible only through three narrow doors, one near the head, the second in the middle and the third at his feet.
Gould, like Bach, became a religious artist, giving the worldly music for keyboard a mystic charge — making the recording studio a sanctum, a concert hall with an unseen audience, and turning the recording-studio experiment into a sacred rite.
But such a sanctum needn't be geographical: for most of us, it exists in the mind The countryside, and its wildlife, makes us happier, healthier, nicer, calmer – so why won't politicians act to protect it?
His men and women do not exist in felicitous concert with others; each form is a secret sanctum, a maximum of being wrested from a minimum of material.
At the Pomodoro Foundation, an exhibition and concert space he set up five years ago in Milan, he is putting the final touches on a basement labyrinth that leads to an inner sanctum, a shrine to the 18th-century adventurer, fraudster and esotericist Giuseppe Balsamo, alias Count Cagliostro.
The family escorted him to a genteel Brooklyn salon, Simmons and Company, where a jaunty artiste parted a pair of gold lamé curtains and led the boy to an inner sanctum, a new self.
Soon, I came upon a crowd gathered in an inner sanctum, and saw a monk in a black hood and a golden cape singing in a rich baritone, his voice echoing off the rock walls.
Yet even inside, says one billionaire, there is an inner sanctum, a cordoned-off area near the dance floor, open to friends of Flavio.
