Our heroes delve into the study of subtle data. Practice makes it possible to immerse yourself in very distant worlds. Perception is forced to zero, otherwise it will be impossible to endure such experiences. Even pure reason makes assessments of what to do in such places is dangerous for the psyche. The harshness of what is happening is compensated by the participation of colleagues and awareness of the importance of the mission. Someone must take the first step into the abyss...