109:3.7
In many of the early evolutionary races of Urantia, three groups of beings existed. There were those who were so animalistic that they were utterly lacking in Adjuster capacity. There were those who exhibited undoubted capacity for Adjusters and promptly received them when the age of moral responsibility was attained. There was a third class who occupied a borderline position; they had capacity for Adjuster reception, but the Monitors could only indwell the mind on the personal petition of the individual.