"dear soul" is correct and usable in written English.
It can be used to express affection or sympathy, typically in a letter or when addressing someone directly. For example, you could write "Dear soul, I hope you are doing well."
"May his dear soul rest in peace".
He is her "dearest friend"; she is his "dear soul".
Christopher Plummer, who plays Parnassus and worked with Gilliam on Twelve Monkeys, recently told an interviewer that the director had himself blamed the jinx that appeared to afflict his films for Ledger's death: "[Terry] is a very dear soul underneath all that wacky stuff, a very emotional man," he said.
The band expanded to a five-piece, and amassed a loyal following for their soul-baring, emotionally rich songwriting, including Aaron Dessner of US band the National who produced their most recent album, 2016's Painting of a Panic Attack – Dessner said he was "devastated", and called Hutchison "a dear soul and a brilliant songwriter".
You, dear soul, are a soul searcher.
Travel safe on your journey dear soul, live well!
Now we have a fight on our hands to ensure that England – this land of such dear souls, this dear, dear land – does not become a meaner, darker, smaller-spirited place.
My dear soul-sister Sue recently told me that my commitment to my partner matters to her, that it inspires her, and that her family are rooting for ours.
It sucks that these dear souls lost their lives to a machine that loves violence.
I can say that I, personally, used to be the 2nd type, but now, I'm the 3rd -- I value myself just as much as I value other dear souls.
Farewell, sister, my dearest soul, as I hope to prosper, and hail.' They are the among the earliest examples of a woman's handwriting in Latin.
