When to use heart in Korean
Korean: 마음[ ma-eum ]

When to use it
The word 마음 means a person’s heart, feelings, or inner mind. It is used a lot in Korean for emotions, thoughts, and kindness, not only for the body. You can use it in everyday life to talk about how someone feels or what they like (마음).
Example sentences
엄마의 마음은 따뜻해요.
Mom has a warm heart.
친구의 마음을 알아요.
I know my friend's feelings.
시험 전에 마음이 조금 불안해요.
My heart feels a little nervous before the test.
공원에 가면 마음이 편해요.
I feel calm when I go to the park.
이 컵이 마음에 들어요.
I like this cup.
여행 가기 전에 마음이 설레요.
My heart feels excited before the trip.