He wore a tall pointed blue hat, a long grey cloak, and a silver scarf. He had a long white beard and bushy eyebrows that stuck out beyond the brim of his hat.—The Fellowship of the Ring, A Long-expected Party




As a wizard and the bearer of one of the Three Rings, Gandalf has great power, but works mostly by encouraging and persuading. He sets out as Gandalf the Grey, possessing great knowledge, and travelling continually, always focused on the mission to counter the Dark Lord Sauron. He is associated with fire, his ring being Narya, the Ring of Fire, and he both delights in fireworks to entertain the hobbits of the Shire, and in great need uses fire as a weapon. As one of the Maiar he is an immortal spirit, but being in a physical body on Middle-earth, he can be killed in battle, as he is by the Balrog from Moria. He is sent back to Middle-earth to complete his mission, now as Gandalf the White and leader of the order of wizards.



Originally called Olórin, he was accounted as the wisest of the Maiar (with the possible exception of Melian). He was created by Ilúvatar before the Music of the Ainur, and was at the beginning of Time amongst the Ainur who entered into Eä. In his youth he became one of the Maiar who served Manwë, Varda, Irmo, and Nienna. He was associated with light and fire, much like Varda, yet his ways often took him to Nienna, from whom he learned pity and patience. He loved the Elves, but walked unseen among them, or wore the guise of an Elf, and sent them fair visions in their hearts that made them wiser. Throughout his life he followed the example of Nienna, talking pity on the sorrows of the Children of Ilúvatar and drawing those who listened to him out of despair.When the Valar decided to send the Istari (also called Wizards) to Middle-earth to counsel and assist all those who opposed the Dark Lord Sauron, Manwë and Varda included Olórin among the five to be sent. At first, Olórin was nervous and described himself as too weak and afraid of Sauron. Manwë understood, and told Olórin that such was a reason why he should go, to overcome that fear. Furthermore, the One Ring, containing much of Saurons power, presumably still existed somewhere. Thus, Manwë insisted that Olórin should go as the third, but Varda convinced him to send Olórin as the second instead. He agreed, and prepared for Olórins departure from the Undying Lands with the other four, arriving about the same time that the Necromancer appeared in Mirkwood.Reemergence of the Necromancer

Around year TA 1100, the Istari and Eldar discovered that some evil entity resided in at Dol Guldur in Mirkwood; while some thought a Nazgûl had returned to torment the world, or some new evil was arising, Gandalf began to suspect that perhaps Sauron himself might have returned. As in the next two hundred years, evil continued to grow and spread, as well as the source directing it. Gandalf went to Dol Guldur in TA 2063 to discover its secret. However, the Necromancer fled upon Gandalfs arrival, preventing Gandalf from identifying him. After Gandalfs incursion, the evil there seemed to desist, and its absence allowed for some centuries of calmness.



Forming of the FellowshipElrond called a council after Frodo was healed to consider the momentous decision regarding the ring. There Gandalf explained to the others how Saruman had imprisoned him and how the White Wizard was creating his own army of orcs to rival Saurons. By chance, representatives of most of the free peoples happened to be in Rivendell already for various reasons. Elrond and Gandalf advised that the Ring should be destroyed in the fires of Mount Doom, where it was made. Others dissented or objected, but eventually submitted to Gandalfs plan. Ultimately, Elrond appointed the Fellowship of the Ring as nine walkers, numerically set against Saurons nine Nazgûl. The relatively small number reflected the realisation by Elrond and the other council members that the Quest of Mount Doom would not rely upon strength of arms, but on stealth and good fortune. Gandalf was chosen to lead the company, which included Aragorn, Boromir of Gondor, Legolas the Elf, Gimli the Dwarf, and the hobbits Frodo, Samwise Gamgee, Peregrin Took, and Meriadoc Brandybuck.Fall in Mines of MoriaAt the Doors of Durin on the west side of the mountains, Gandalf, after some delay, spoke the password and led the company into the dark. Having been in Moria on an earlier perilous errand, he was somewhat familiar with the underground passages. Eventually the party came to the Chamber of Mazarbul, where Gandalf read the Book of Records, which revealed the fate of Balin, the leader of an ill-fated attempt to re-colonise Moria. Soon after, the party was attacked by Orcs, and forced to flee the chamber. By then Gandalf was well aware of their location, and he led the party quickly towards the eastern exit.

You cannot pass, he said. The orcs stood still, and a dead silence fell. I am a servant of the Secret Fire, wielder of the flame of Anor. You cannot pass. The dark fire will not avail you, flame of Udûn. Go back to the Shadow! You cannot pass.
—The Lord of the Rings, The Fellowship of the Ring, Book II, Chapter 5: The Bridge of Khazad-dûm

Unfortunately Durins Bane caught up to the group at the Bridge of Khazad-dûm. Gandalf and Legolas immediately realised what it was: a Balrog of Morgoth, a servant of the first Dark Lord. In a spectacular display of bravery Gandalf faced the demon and broke the bridge both stood upon, leaving the beast to fall into a seemingly bottomless chasm. But the Balrogs whip lashed out, and grasped Gandalf by the knees, causing him to fall into the pit. While falling, Gandalf shouted Fly, you fools and vanished into the abyss.

Resurrection

Then darkness took me, and I strayed out of thought and time, and I wandered far on roads that I will not tell... Naked I was sent back – for a brief time, until my task is done. And naked I lay upon the mountain-top. … There I lay staring upward, while the stars wheeled over, and each day was as long as a life-age of the earth.
—The Lord of the Rings, The Two Towers, Book Three, Chapter V: The White Rider








Sorry guys... Gandalf is a very big character and has many stories in Tolikens book. It is hard very hard to shorten it. So This article is not good nor enough.

If ı find time to do it, i will publish a series of articles for Gndalf