Failure to perceive light-weight is usually to perceive darkness. The sunshine is worthless to you then, Regardless that it can be there. You can't utilize it mainly because its presence is unidentified to you personally. Along with the seeming actuality of the darkness would make the idea of light-weight meaningless. POR FAVOR: EVITE https://www.youtube.com/watch?v=QajPSiQCzfc