I pray also that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in the saints, and his incomparably great power for us who believe.
Check out this fascinating quote explaining the meaning of Paul’s unique phrase the “eyes of your heart.” It is more than just a misjudging of the location of one’s ocular devices. It is Paul describing the importance of the Holy Spirit’s regenerating work in our hearts allowing us to see the truth.
Paul uses a strange construction here: the eyes of your heart may be enlightened. Usually we think of the eyes as being in our head, and we connect the head with the brain and the brain with the mind. Hence we say that we understand a particular teaching with the mind. But the apostle refers to the eyes of the heart. What does he mean?
He means that by nature we are closed to the things of God. He does not mean that we cannot discuss them nor have intellectual debates about them. But the heart in New Testament terms refers to the central disposition, inclination, bent, or proclivity of the human soul. In simple terms, the bias. Everybody has a bias and prejudices. The word ‘prejudice’ is usually a pejorative term, but what it literally means is to prejudge certain things, to have a standpoint, a viewpoint.
Our natural prejudgment of reality is against God. To receive the truth of God requires that our ‘anti’ bias be changed. The key work of the Holy Spirit in regeneration is not giving new knowledge to the brain but changing the disposition of the heart. Before the Spirit turns that heart of stone into a heart of flesh, we have no desire for the things of God. We may desire the blessings that only God can give us, but we have no affection for the things of God. At the moment of regeneration, the eyes of the heart are opened somewhat, but this is just the beginning. The whole Christian life involves an unfolding and enlarging of the heart’s openness to the things of God. There are concepts, attitudes, and values in my life at present that do not please God, for there will be stony parts to my heart as long as sin abides within me. Sin clouds my thinking, my will, my desires, my affections. There will always be parts of me that need to be opened more and more to let the fullness of God’s truth dwell in me. — The Purpose of God: Ephesians