If the light source in ’73 was high enough in the sky to impact the prism and break down, in ’75 that same light source is low on the horizon, so much so that it colors the sky red, in a crimson twilight induced by the moods of the four band members on the verge of a near-death experience. At the same time, we realize how the words, suffocated by the feeling of melancholy, have found music as their only means of expression. Proof of this is the lengthy final suite of this masterpiece, where Rick’s keyboards depict the four Floyds from behind, in an artificial fog, immersed in an aura created by the sun. But the shadows cast on the ground are multicolored, further disorienting us, the listeners, unaware that the 48 minutes of music have transformed our room into an unreal environment.