"precious heart" is correct and usable in written English.
You can use it to show that somebody or something is particularly cherished or beloved. For example, "My precious heart, I love you so much."
"Your body is such a blessing; your body carries your precious heart and your wonderful heart.
Arguably a touch precious, Heart of a Dog is nevertheless super-literate, witty, moving and extremely inventive.
Near the end of "Cosmia," the last song of "Ys," she sang, "I miss your precious heart" with a vehemence that was heartbreaking.
It opens with Louisahhh!!! intoning in her signature stone-cold way, "Be careful with that precious heart.
This journey which frees you from dieting, leads you right into yourself - into your life, into your deepest self, into your precious heart.
And Norah Jones, bless her precious heart, sounds like she was born a country singer, inspiring flashbacks of the soft, emotional, pure country melodies of Loretta Lynn and Patsy Cline.
And she said, "I promise to continue to love your children as if they were my own and hold and protect their precious hearts so carefully in mine".
But since Ohlin's novel lies stiffened in a morgue of mentation — since it relishes the Harlequin mauling of women and men — the inside on promiscuous display here is the inside of her characters' precious hearts.
It is the realization of already having it all and then truly enjoying the precious heart-filled gifts we receive or give ourselves that fill us real and lasting pleasure.
Can we gather together during this time to share our most precious hearts?
A loving heart, a heart full of love, is the precious essence of human life... Love is the most precious gift of God to us.
