The phrase "a useful illusion" is correct and usable in written English.
It can be used to describe something that may not be entirely real or true but serves a beneficial purpose or function.
Example: "In some cases, believing in a useful illusion can help individuals cope with difficult situations and maintain a positive outlook."
Alternatives: "a beneficial deception" or "a helpful misconception".
But it is a useful illusion.
The border of the frame, which separates the on-screen action from the behind-the-scenes work (and, for that matter, from the world at large) is only a useful illusion.
Wooden grillwork and shoji-like window moldings, painted red, give it the feel of a spacious Japanese country house -- a useful illusion, given that tables are close together and the noise level can be high.
In short, revolution is not a means to achieve socialism; rather, the myth of socialism is a useful illusion that turns ordinary men into comrades and revolutionaries united in a common struggle--a band of brothers, so to speak". Harris says free-market capitalism needs a "transformative myth of its own" to fight the myth of revolutionary socialism.
"It might have been an illusion, but it was a useful illusion," he told me.
Reference is a useful trick of mind but sometimes it is worth popping the illusion.
It encourages familial identification between fans and their favorite artists, and provides the useful illusion that the industry is less about money than about blood.
Another useful illusion: Scott Barnes's Body Bling in Original applied all over, with the Platinum shade on the fronts of the legs to streamline.
But they are useful illusions.
But Dixon ends his slavering indictment of Mulvey with an admission that the monster is simply a useful fiction, providing "the illusion of unity" to a group only capable of binding itself together "not by what it shares but ultimately by what it fears".
We report the first investigation into the effects of visual priming on a complex visual illusion that is posited to be a useful analogue of visual hallucinations.
