When the worlds have become ripe for spiritualization, the bestowal Son arrives. These Sons always belong to the Magisterial or Avonal order except in that case, once in each local universe, when the Creator Son prepares for his terminal bestowal on some evolutionary world, as occurred when Michael of Nebadon appeared on Urantia to bestow himself upon our mortal races.
[NOTE: Archive page of symmetryofsoul.org includes referenced 'Sections' previously studied in The Urantia Book. Broadcast begins each Tuesday at 9:00 PM Eastern Time (02:00 GMT). Check worldtimezone.com for local time.]