Portrait "Light" Concept

I want to continue using my theme on human creation/evolution and the uncertainty of our origin.  I plan on using very little light and moving around the room on my hands and feet in an uncertain manner.  

The reason for very little light is to represent an inability to see where we are in the world and where we have come from.  I think a night vision view of this same type of video would also be very effective.  I want to convey a sense of uncertainty and uneasiness in one's surroundings.