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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.
care. 1. a troubled state of mind; worry or concern. 2. a cause or object of worry or concern. 3. serious attention; caution: to devote great care to one's work.4. protection; charge: under the care of a doctor.are. 1. a troubled state of mind; worry or concern. 2. a cause or object of worry or concern. 3. serious attention; caution: to devote great care to one's work.