In Book Four, Section 4 of the Masnavi, Rumi uses a dialogue with Jesus to convey a profound spiritual lesson about anger. When asked what the most difficult and terrifying thing in existence is, Jesus identifies it as God's wrath, stating that even Hell trembles before it. When the questioner asks how to find safety from this divine wrath, Jesus advises abandoning one's own wrath immediately. This allegory teaches that human anger is a destructive, ego-driven force, and by relinquishing personal wrath, individuals can attain spiritual safety and align themselves with divine mercy.