Poetry moves minds, thereby moving societies and nations.
The question, do poetry make anything happen, why and how, is a very good and relevant one. One of the chief objectives of poetry is to elevate human mind. It adds velocity to the otherwise inert mind. Mind at most times has only weight, and no velocity. We all know that weight into velocity is equal to momentum. An aeroplane lying on the ground has weight. When the motors are started and the fuel is ignited, it gains velocity and moves forward according to the momentum it acquires. At a particular level of momentum it takes-off. It cannot simply help lying there. This is exactly what capable poetry does to human mind. Poetry imparts speed and momentum to human mind and the momentum gained thus makes it take-off.
Poetry moves minds. Perhaps it's moving powers are far greater than the actual individual and social experiences of a person, considering the fact that poetry also contains reasonable arguments, logic and philosophy to master a given situation in human life. Thus when poetry moves minds, it is actually moving societies and nations. It is an undeniable fact that the great literary epics, whether it be the Ramayana, Mahabharatha, The Illiad, The Odessey, The Divine Comedy, The Song Of Roland or The Beowulf formed and decided the national character of India, Greece, Italy, France or England. They were what in which their national heritage, culture and civilization were preserved for the posterities. And they are what generations still look upto for inspiration and guidance. That poetry makes nothing happen is a fallacy. Pablo Neruda's Canto General and The Third Residence On Earth has been a fountain head, source and reservoire of revolutionary inspiration for the whole world since it's publication. Mayakovski's poems including Let The Rail Workers Awaken have been the most restricting force in Lenin's Russia. Premiere Lenin even said: I don't like this man, but his poem Those Who Hold Committees Daily tells well people's opinions about us committee-holders. This poem contained just two simple lines: Everyday committee, committee, committee: Nothing happens, nothing happens, and nothing happens.