"Created to bring hope to the future in the light of so much destruction, when good faces overwhelming odds. At the end of the war with the Sinestro Corps and after being exiled from the Guardians of the Universe for their individuality, Ganthet and Sayd started the Blue Lantern Corps by creating a Blue Power Ring out of their hope for the future. The Blue Lantern Power Rings are powered by the emotion of Hope. The Blue Lantern Corps recruitment is unique in that it takes a process of three days in which the being in question is picked by the most recently recruited lantern. Then they are taken to the Blue Lantern Headquarters on Odym. Once on Odym they are explained to, in great length what it means to wield the power of hope. They learn that it is a responsibility to give one's self to the universe. When they agree to the terms and conditions of wielding such power, The Guardians of Hope bestow the ring upon them." That help?