Here's what we know about IT:
* It is a being, not a place. The book describes IT as "a force of pure evil, a being of such utter darkness that it is impossible to even comprehend."
* It feeds on darkness and negativity. IT thrives on the fears, doubts, and weaknesses of others, corrupting them and turning them into its followers.
* It seeks to destroy love and light. IT opposes everything that is good and beautiful, and its ultimate goal is to consume the entire universe.
* It can be resisted. Though powerful, IT is not invincible. Through faith, love, and courage, individuals can resist its influence and defeat its evil.
In the story, IT is not a physical entity, but a force that acts through its followers. It manifests itself in different ways, such as:
* The Black Thing: A shadowy creature that chases Meg, Charles Wallace, and Calvin.
* The Happy Medium: A seemingly benevolent being who actually serves IT.
* The people of Camazotz: A society that has been completely taken over by IT and lives in a state of robotic conformity.
While never fully explained, IT serves as a powerful symbol for the dark forces that exist in the world and the struggle between good and evil.