However, he was unable to win the freedom of his mother, Shmi. This, of course, was something which upset him greatly.
Jedi Qui-Gon Jinn believed Anakin to be the Chosen One spoken of in an ancient prophecy, the one who would bring balance to the Force.
Anakin was to be looked after by Qui-Gon, but Darth Maul changed things by killing Qui-Gon in a battle.
As Qui-Gon lay dying, he begged Obi-Wan Kenobi to take the young Anakin as his student and to train him as a Jedi.