Dallas Willard in talking about the human spirit have this to say, “I am a spiritual being who currently has a physical body. I occupy my body and its environs by my consciousness of it and by my capacity to will and to act with and trough it. I occupy my body and its proximate space, but I am not localizable in it or around it. You cannot find me or any of my thoughts, feelings or character traits in any part of my body. Even I cannot If you wish to find me. The last thing you should do is open my body to take a look—or even examine it closely with a microscope or other physical instrument….That very unity of experience that constitutes a human self cannot be located at any point in or around this body through which we live,…The human face, and specially the eyes, are not just additional physical objects in space. We say that the eyes are the windows of the soul, and there is much truth to it. They and the face and hands are the space where the spiritual reality of the person becomes present to others…. Interestingly, “growing up” is largely a matter of learning to hide the spirit behind our face, eyes, and language so that we can evade and manage others to achieve what we want and avoid what we fear. By contrast, the child’s face is a constant epiphany because it doesn’t yet know how to do this. It cannot manage its face. This is also true of adults in moments of great feelings—which is one reason why feelings are both greatly treasured and greatly feared.
Those who have attained considerable spiritual stature are frequently noted for their “childlikeness.” What this really means is that they do not use their face and body to hide their spiritual reality. In their body they are genuinely present to those around them. That is a great spiritual attainment or gift.”
Perhaps this is one of the reasons why to enter the kingdom of heaven we must become like children. When we lose our capacity to be childlike we lose that spiritual spark that make us so much like our Creator. For the unbeliever to get a glimpse of the Kingdom of God, they most first see it reflected in our faces and behavior.