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matter of the heart definition, matter of the heart meaning | English dictionary. matter. 2 substance that occupies space and has mass, as distinguished from substance that is mental, spiritual, etc. n the substance or main theme of a book, discussion, debate, etc.
Like gold, the heart has played an important role in symbolism throughout history. Medieval thinkers believed the heart to be the seat of emotion and passion. This symbolism permeates modern language in phrases such as matters of the heart or to have a good heart.