Befriending life is less a matter of knowledge than a question of wisdom. It is not about mastering life, controlling it or exerting our will over it, no matter how well intentioned our will may be. Befriending life is more about harmlessness than it is about control.
For centuries, epilepsy was the exact expectation of someone being possessed by the Devil. There was no better explanation, and it allows you to admit the existence of the Devil. If there's a Devil, that mean's there's a God.