God the Father is Spirit and He has a heart. Every spirit has a heart.
John 4:24b ... God is Spirit ....
1 Corinthians 14:24,25 ... "If all (in the congregation) prophesy, and there come in one who doesn't believe, he's convinced of all, judged of all, and thus are the secrets of his heart made manifest. So he falls down on his face and worships God and reports that God is in you of Truth."
So God is in us of Truth ... the God of Truth is in us.
Acts 13:22 ... God said, "I have found David, the son of Jesse, a man after My own heart, who will do all My will."
David was a man after God's own heart. What is the heart of God? It's His center ... it's the center of His life.
Psalm 33:11 ... "The counsel of the Lord stands forever, the plans of His heart to all generations." This is referring to the thoughts of God's heart.
Your memory is in the heart of your spirit man. The Word of God that you have is stored in your spirit man's heart.
Reverend Robert W. & Mary C. Butler