The roles of art, morality, religion, political faith, science itself are not to repair organic exhaustion nor to provide sound functioning of the organs. All this supraphysical life is built and expanded not because of the demands of the cosmic environment but because of the demands of the social environment.

This quote is saying that art, morality, religion, political faith, and science are not necessary for a person’s physical health or the body’s normal functioning. Instead, these things come from people’s relationships and interactions within a social environment. Put simply, art, morality, religion, political faith, and science exist not because of our bodies’ needs, but because of the needs of the social world.