Pianoscout

Alright, so I am not a theoretical physicist, but one of my physics buddies and I had this idea today and I wanted to run it by experts to see what out error in thinking is. Heres the concept... What if light was stationary in the universe, and we were moving through it? This would imply that light was somewhat of a 4th dimension, and our observable world was traveling through it at the "speed of light". This would also imply, I suppose, that time would not be the 4th dimension, but a characteristic of matter like gravity? which would say that time does not exist in the absense of matter. The concept of stationary light/moving universe would also explain the constant-ness of the speed of light. it proposes the interesting thought of light being a manifestation of a 4th dimensional object in a 3 dimensional world, which may explain our difficulty of understanding exactly what light is. so where is the error in my thinking here? what other things would this concept imply?