Struggle hard and then if you do not succeed, you are not to blame. Let the world praise or blame you. Let all the wealth of the earth come to your feet, or let you be made the poorest on earth. Let death come this moment or hundreds of years hence. Swerve not from the path you have taken. All good thoughts are immortal and go to make Buddhas and Christs.
Swami VivekanandaPrana, according to the Vedanta, is the principle of life. It is like ether, an omnipresent principle; and all motion, either in the body or anywhere else, is the work of this Prana. It is greater than Akasha, and through it everything lives. Prana is in the mother, in the father, in the sister, in the teacher, Prana is the knower.
Swami Vivekananda