Consciously attuning to the heart with positive emotions, especially feelings of gratitude, can help shift negative patterns.
Conditions in the heart appear to influence behavior. We are all aware of people who seem to have an angry heart. Proper training in how to produce coherent heart rhythms helps to shift emotions, causing behavior changes.
The pulsations of our hearts are an intelligent language that influences how we perceive and react to the world. When we focus on the heart and produce coherent rhythms, we see more clearly, are less influenced by the primitive brain and are more open to receiving input from our higher centers. This input has wisdom and creativity of which our lower brain centers are not capable.
The electromagnetic power of the heart is five thousand times stronger than that of the brain. This amazing fact points to the centrality of the heart in all areas of our lives.
From 12 Keys for Life and Self Mastery
Session 7: Engaging the Flow: Power of Centering, Attention and Concentration
Information informs, practice perfects. A heart centered practice brings information to life, first within you, then in the world.
This video from HeartMath describes how the energy of the heart operates.