Pernos said that you would need protection as much as you'd need a weapon. You met the Elim, Aetheric Field Protectors and unique Daevas and stored all their blessings and Aetheric energy into the marble you received from Pernos. When you returned, you reflected upon how many lives you'd touched and been touched by. Pernos was pleased, saying this would help solidify your beliefs before the battle.