Inside your body is a hallway and right bang smack in the middle of the hallway between your soul and your mind lies your heart. The soul's nature is Joy and Joy runs to your heart and is then able to enter your mind. Our souls contain the language of our feelings. If you close your mind your feelings will back up in your heart and hence the term "my heart is breaking". And when you are really really happy your heart feels like it is bursting. If you allow yourself to express your feelings and have an open mind you'll push the feelings out and your heart will not break or burst and the life energy in your soul will be flowing freely. You can heal any moment if you have Joy in your heart.