near and dear to my heart

When someone is near and dear to your heart is means that it is very important to you, often someone who is close to like a close friend or family member, or an item close to your heart due to its sentimental value. Something near and dear to your heart can be anything from an item, to a person, form of media like a movie or song, or even a place or memory like the memory of your wedding which is an important memory to have.