Gandalf the Grey died upon that mountain, next to the body of his foe, and the spirit of Olórin returned to the embrace of Eru Ilúvatar. Olórin was the only Istar to remain true to his mission.

After Gandalf dies, the Valar take away his vulnerabilities and limitations, allowing him to use more of that raw, untapped Maiar power. This grants Gandalf the White more wisdom and knowledge ...