'Come back, Saruman!' said Gandalf in a commanding voice. To the amazement of the others, Saruman turned again. and as if dragged against his will, he came slowly back to the iron rail, leaning on it, breathing hard. His face was lined and shrunken. His hand clutched his heavy black staff like a claw.
'I did not give you leave to go,' said Gandalf sternly
So now Gandalf is clearly the Chief of his Order. But i was wondering : if Gandalf's spirit went to the halls of Mandos after his death, then how could his power be enhanced? I don't know if any Vala or other Ainu can channel some of their power into another Ainu, so that the power of that Ainu is permanently increased. Although Morgoth dispersed his power into Arda, i don't really know if he dispersed his power directly into his minions. He only inspired them, but to me this seems to be only mind-control --- the same technique Sauron also seems to use (a technique which is cleary only temporary) :
As when death smites the swollen brooding thing that inhabits their crawling hill and holds them all in sway, ants will wander witless and purposeless and then feebly die, so the creatures of Sauron, orc or troll or beast spell-enslaved, ran hither and thither mindless; and some slew themselves, or cast themselves in pits, or fled wailing back to hide in holes and dark lightless places far from hope.
But i was thinking of another possibilty : perhaps Gandalf's spirit didn't pass to the Halls of Mandos, but to Eru's Halls instead, and perhaps Gandalf was sent back by Eru himself ? To me it seems more logical that Eru -the upper chief- is able to enhance any Ainu's "power" and "abilities".
Another possibility is that the Maian spirit Olor’n indeed passed to the Halls of Mandos, hence returned to Aman, but instead of an "enhanced"/"tuned" Olor’n the Valar sent another Maia spirit back to Middle-Earth? That could explain :
a) why Gandalf the Grey becomes Gandalf the White
b) why the White Rider doesn't seem to remember his name :
'Gandalf,' the old man repeated, as if recalling from old memory a long disused word. 'Yes, that was the name. I was Gandalf.'
I mean, why would anyone forget one's old name? Being confused after just being resurrected is not really the case, as the White Rider already spent some time back on earth before he showed himself to Aragorn, Gimli and Legolamb; among other things, he talked to Treebeard when the latter went to his house with Pippin and Meriadoc.
Anyhow, i for me believe that after his death, Olor’n was called/dragged back and made a more powerful Ainu by Eru himself, and then sent back.
I don't know if anyone wants to react to this random thoughts, but everyone is surely welcome.
And now i'm off to bed.