Mandaean ethics run directly against the Gnostic stereotype: celibacy is forbidden, marriage and procreation are religious duties, and priests must be married. Charity, honesty, and avoidance of intoxicants are required. The reasoning is that the light in the world must be perpetuated rather than allowed to die out — which makes the community's current demographic crisis, with perhaps 60,000-100,000 remaining worldwide and most displaced from Iraq since 2003, a theological problem as well as a practical one.