Within this intuitive interpretation of Pink Floyd's music, there are secrets, enigmas and metaphors. The narrative is open ended, therefore open to individual interpretation, along the lines of: In the parallel worlds of the past and the future, two tribes struggle to survive on a dying planet, while attempting to communicate with the life force of earth itself. As time runs out, a monolith approaches from outer space, carrying within it a puzzle which they fail to understand. Is it a warning, or does it contain the secret to the survival of mankind?.