52:5.1

When a certain standard of intellectual and spiritual development is attained on an inhabited world, a Paradise bestowal Son always arrives. On normal worlds he does not appear in the flesh until the races have ascended to the highest levels of intellectual development and ethical attainment. But on Urantia the bestowal Son, even your own Creator Son, appeared at the close of the Adamic dispensation, but that is not the usual order of events on the worlds of space.