A major use of words and sound emitted by it is done for attaining knowledge. The ordinary aim of what is uttered by our speech and what is heard by our ears is to increase our data bank of worldly information. If a person wishes to convey his thoughts and emotions to another person and also know the reaction of this he has to use the medium of words. Words are vehicles that transport/transmit our thinking and sentiments. They drag these here and there and hence by warding off the loneliness experienced by humans helps attain oneness with others. The entire credit of transforming the micro (individual) into macro (cosmic form) goes to these words uttered. Lest mankind did not possess the specialty of speaking then akin to monkeys, bears etc he would have existed somehow in a very mediocre manner. Today man getting the credit of being called the crest jewel of entire world creation is because of this specialty to speak.
Everyone knows how great the utility value of word and sound is for material progress. Attaining the recognition of the potential of word vault, which is the root goal of education means getting benefitted from it. The art of writing, wherein etching on paper etc shapes of words that we call alphabets have added to his glory. Man has become the lord of the widespread realm of knowledge-science due to the varied artistic skills he possesses in the form of writing and speaking. Those who lack this special art in a sense can be called mentally dumb and deaf. It certainly is not an overstatement that our inner and external happiness and development is based on words and its sound. In the creation and advancement of the inner human personality, in rendering human society well advanced and organized the importance of words reigns supreme.
Everyone is well aware of this gross usage of words. In order to use words for augmenting knowledge-wisdom music and literature were developed. The fact that this world appears beautiful and grand in it the contribution of word and sound is extraordinary. Knowing this, people are very active as far as rendering sound energy widespread and utilize it in a desired manner. Thousands of national and international radio stations are ceaselessly immersed in broadcasting activities. Millions of newspapers being published daily fulfill this very aim. Thousands of workers involved in printing, publishing and marketing of various forms of literature are doing so to fulfill this very requirement of world humanity. Various branches like telegraph, telephone, post offices, movies, gramophone, TV, internet, cell phones etc are active in this very direction. Schools and colleges are set up for this purpose only. The human race is well aware of the wisdom augmenting benefit from the medium of words and sound. Hence everyone is accruing immense benefits from all this. Of course due to misuse of such art terrible bad reactions too have to be endured by people. In augmenting human downfall and hatred amongst each other misuse of words can be called the culprit. audio visual install