the darkness has not overcome it

What I get into with this question is the issue of what are the unconscious influences on the choices we make? For example the cultural values we have unconsciously absorbed and which have absorbed us. Or the influence of early brain development on who we allow to get close enough to us to have an impact on our choices...(or how close we allow them) or the physiological impact of sensory imput on our choices (e.g. light, darkness, color, odor etc.) How do these sensory factors even influence the impact of worship on us? What is the role of the Holy Spirit in how we are open to the experience of grace that can guide our choices...either enhanced by the above factors or despite them.