Go forth and set the world on fire.

The line is commonly taken as a rallying cry for apostolic zeal: a summons to leave comfort and act decisively so that one’s faith and convictions become contagious, transformative “fire” in society. Read in an Ignatian key, it aligns with the Jesuit emphasis on mission, disciplined action, and “finding God in all things”—not merely private devotion but outward service that changes institutions and lives. The metaphor of fire suggests both illumination and purification: truth that spreads, warms, and sometimes unsettles. Even if the exact wording is doubtful as a verbatim Ignatius quotation, the sentiment matches later Jesuit self-understanding and modern motivational use.