3 Nephi 20
Leaving the world behind will not be a hasty or quick process. Part of the reason for this is that the world will always try to entice people to return. The other part is that becoming a person prepared to live in Zion requires practice and metamorphosis. Remember also that this is not a fleeing from the world, but a planned and executed departure. The movement will go largely unnoticed because it will not be done the way men would choose to do it. They would pick all the best people based on outward criteria – the smartest, best looking, outwardly righteous, richest, or some other discernible qualification. The Lord will look on the heart and help people to prepare who the world would overlook while leaving behind those who only seek to match the expectations of men.