bring it to a plinth

[Eugene2114]

First coined by the Roman poet Horace and later adopted by Winston Churchill to describe his own depression, the metaphor of the "black dog" has been used for centuries. Now a mental health charity has reclaimed the expression and wants to bring it to a plinth near you.
-Didn't find a satisfying explanation of "bring it to a plinth". Is it the author's invention? = 'To make it a cornerstone'?
Thanks.

[Beeesneees]

I suspect something like that, Eugene.
Possibly 'the charity wants to use it's logo around the country.'
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Cheers m' dears!