This passage is from “Great Mountain”:
“We are living in the realm of faith. Therefore, we must unite based on the Gohonzon, with faith as our foremost guide. If we allow ourselves to be ruled by our emotions, jealousy and conflict are bound to arise. That is a sign that the devilish functions within us have taken control and we have strayed from the teachings of Buddhism. Uniting together entails a struggle with these inner devils, and achieving unity of purpose is proof that we have done our human revolution, exercising self-mastery and winning over our own negativity.”