'prosperous heart' is a correct and usable phrase in written English.
You can use it to refer to someone who is content and happy. For example, "He lived a life of joy and had a prosperous heart until the end."
A prosperous middle class is beneficial to the nation's well-being, and the beggaring of those who have the bad luck to get cancer or heart disease does no one any good.
Accra grew into a prosperous trading centre.
Both sons of stockbrokers, they grew up in prosperous villages in the heart of Tory England, where skepticism toward Brussels runs deep.
Yet at the heart of prosperous, urban China sits an enormous inequality, based upon the hukou system of household registration.To have full access to schools and hospitals in the cities at subsidised urban costs, you must have an urban hukou.
In the past, with a prosperous Germany at the heart of a self-confident Union, many tough problems were eventually resolved by the German government reaching for its cheque book.
Subtitled to ensure no wiseguy witticisms are overlooked, the movie attaches itself to the family's smirking, openly gay boss, Dominic, between whose shaved dome and prosperous belly beats the heart of a monster.
Situated in the heart of busy, prosperous Lincoln Park, the three-way intersection of Halsted Street and Lincoln and Fullerton Avenues seems engineered for a traffic jam.
In the 19th century, particularly following the opening of the Erie Canal in 1825, Manhattan developed as the heart of a prosperous and expanding metropolis.
She was from a prosperous family who followed her heart and married the illiterate Akiva against her family's wishes.
This symbiotic relationship between higher education and workers, employers, communities and government is at the heart of a prosperous and happy nation.
