It is not only in the discussions of physics that we face a law called the Law of Reaction that for instance, if an objects hits a wall with a specific force then it will be moved in the opposite direction with the same force, but we found this law more sensible in social issues.

Historical experiences show us that changes and expanded revolutions have always been the direct reaction to the previous pressures; and maybe no expanded revolution has happened in the world unless there was a severe pressure in the opposite direction.

In other words, radicalism has always been the source of changes; for example:

1) Scientific Revolution of Europe (renaissance) - which was a reaction against one thousand years of ignorance and backwardness of the Middle Ages, and the pressures which have been made by superstitious custodians of church for keeping people backward, and suddenly they remove the factors of ignorance and fired the torch of science and fluttered the flag of knowledge everywhere.

2) The Great French Revolution in 1789 -  which was an extraordinary political and social lunge against autocracy, class imperialism and oppression of governing regimes, and entered the French society and then other European societies to a new era of their history and replace the oppression and autocracy with the government of law, albeit somehow.

3) Revolution against Slavery in 1848 - which first started in England and was the result of extremely harsh and antihuman behavior of slaveholders with slaves that in one side started the fire of revolution in slaves themselves and on the other side in the impassioned feelings of societies for the slaves, and destroyed the slavery system, although another form of slavery which was more mysterious and expanded than that took its place and the school of imperialism was founded under the title of helping the improvement of backward countries!

Slavery system had to be finished anyway, but behavior of slaveholders with slaves speeded up the process.

4) Revolution against Imperialism - that in our time, was the direct reaction to antihuman behavior of imperialists in colonies and still is; and has become the cause of the growth of wisdom in colonized people and started the opposition against imperialistic powers, although mostly was not resulted in complete economical, social, political and intellectual independence, but the conditions become very different from the past.

5) Communist Revolution in 1917 - which was the reaction to the oppressions of capitalists and their uncounted violations of rights of laborious and enchained people. However, as I have said in its place, this revolution was not ended in the freedom of oppressed classes either, and another autocratic system took its place called Dictatorship of the Proletariat which was in fact the dictatorship of some few leaders of the party.

6) Revolution against Racial Discrimination - which is currently in progress in the world, is the reaction to severe pressures of whites on blacks and their extraordinary deprivation of social rights.

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If we turn the pages of the history and go back to the past then we face the examples of the law of reaction everywhere.

History of prophets is full of series of changes which their backgrounds were ready before, because of severe social pressures, and prophets led and grew these revolutions with divine teachings and advanced them in the right way.

Not only we find many examples for this law among real events of nations of the world in contemporary and previous history, but the reflection of this law can also clearly be seen in the myths and the legends of the nations.

It is mentioned in the story of Zahhak and Kave the Blacksmith that the snakes which had appeared on the shoulders of Zahhak had to be fed by human brain and everyday they had to take brains off the skulls and feed the snakes with them in order that they remain peaceful!

The truth is that the colorful and poisonous snake of imperialism should be fed by brains; and intellectual imperialism is the root and the base of all imperialisms!

Then we see that among these deprived society, which was under the strikes of Zahhak, a blacksmith, who had seen the pressure of fire and his powerful arms had the ability of striking the hammer of revolution, rose and made the flag of revolution out of the same apron which had resisted many times against the sparks of fire, and destroyed the system of Zahhak and the final reaction happened!

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There is also a discussion in today's psychoanalysis and psychology which is another reflection of this law.

This discussion tells us: If human desires are not satisfied in a proper way then these repressed desires retreat from the stage of consciousness to unconsciousness and forms a complex in that stage, but according to some other, unconsciousness is nothing except these repressed desires!

They don't stay calm inside the human self and continuously try to express themselves; reactions of these complexes are very difference in people but it is possible to say that they usually express themselves in one of the following forms:

1) Through making mental disorder and disordering the consciousness

2) Through escaping from the society and isolation and pessimism

3) Through unaware revenge from the society which has made him/her this

4) Through satisfactions in imaginative and imitative forms

5) Through sublimation and flying to more superior levels

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For example, assume that a boy falls in love with a girl and again assume that he couldn't have marry her because of her parents strong disagreement; this firing love will be drove from the consciousness to unconsciousness and not only it won't be destroyed but it will soon expresses strong reactions.

Maybe it makes him mad; or puts him in isolation forever; or makes him a revengeful and dangerous criminal; or diverts him to poetry and literature, and brings him to his love in the world of poetic dreams.

But sometimes, maybe this material love changes to a deep divine love, and disengages himself from other than God and flies like an enlightened pious man of God; albeit, these differences are because of other mental differences and preparations and various spiritual backgrounds of people.

Therefore, we see that always mental pressures also face the revolutions and strong reactions which is another feature of the law of reaction.

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Conclusion: This law tells us that current condition of the world is ready for a revolution.

Pressure of wars, pressure of oppressions and tyrannies, pressure of discriminations and partialities, accompanied by failures and hopelessness of humans from current laws for removing or decreasing these pressures, will finally show its strong reaction.

Finally, these repressed human desires form a massive social complex, under the light of advancing knowledge of nations that exits from the inner self of societies and shows itself by a hyperspeed movement and disorders the current system of human societies, and make a new plan.

A plan in which there is neither the signs of unstopped nuclear competition nor the signs of this much of tiresome conflicts and bloody fights, imperialism, autocracy, oppression, injustice and suffocation.

And this is another sparkle of hope for the bright future which universal society expects.