What is the heart? The heart is where the man’s spirit is. “He has made everything beautiful in its time. He has also set eternity in the human heart; yet no one can fathom what God has done from beginning to end.” – Ecclesiastes 3:11
The heart is who you really are, it is the center of your spiritual self.
The heart determines your perspective, how you view people and situations.
Whatever you believe, you believe it with your heart, not your head.
When your heart isn’t in what you do, those things will be temporary, those things aren’t real to you. That is why you are saved by believing Jesus in your heart, not your head. Everything starts in the heart.