The Written Word By Definition

The written word,
Always defining history
And re-defining
The past, present and the future,
Ever effacing,
Or erasing the history of the past.
Evolving in time,
Revolving like doors
That never cease to open and close.
Always building new pages
Compiling greater books,
With other written words
That suddenly appear
Forming volumes of the written word,
Like new mountain ridges.
Written words diminoing,
As if violently erupting
From dormant volcanoes,
Spewing forth hot ashes
Like molten lava,
Streaming down the mountain side,
Across the seemingly barren earth,
Into the empty waters of time;
The blank and empty pages of life,
Ever waiting to be filled.
Emerging from supposed non-existence
That is merely preexistence,
Into reality's world of being,
The written word,
Always creating
Or re-creating,
While standing the test of time;
A new generation of written words,
By definition.

How does one define the written word other than by definition?