The reason is that till date, in spite of advances in information technology and strategies of information, the written word in the form of books still remains one of humanity's most enduring legacies.
The way you get meaning into your life is to devote yourself to loving others, devote yourself to your community around you, and devote yourself to creating something that gives you purpose and meaning.
Expression, to a great extent, is a matter of terms, and terms are anyone's. The meaning of 'God' may have a billion interpretations if there be that many souls in the world.