The work "Rainy night" represents the decline of humanity. As human civilization evolves, its own decay is staged: nature is outraged and living beings killed. This is symptomatic of a loss of culture and respect. It is the pain of intolerance, resentment, immaturity and fear that generate excruciating instincts. Even as it becomes more and more evident that the world is headed for decline, human beings are interested in nothing more than the perverse pleasure derived from a fall into depravity. They no longer remember or think, and they are nothing more than sheep engaged in unreasonable reactions to life: it is the so-called "human dryness". Without human evolution, the world will not change. If this idea is no longer insisted upon now, it could be heading towards greater decadence and, even worse, towards a tragic ending.