The Self is the heart, self-luminous. Illumination arises from the heart and reaches the brain, which is the seat of the mind. The world is seen with the mind; so you see the world by the reflected light of the Self.
Ramana MaharshiWillpower should be understood to be the strength of the mind, which makes it capable of meeting success or failure with equanimity. It is not synonymous with certain success. Why should one's attempts always be attended by success? Success breeds arrogance and man's spiritual progress is thus arrested. Failure, on the other hand, is beneficial, inasmuch as it opens his eyes to his limitations and prepares him to surrender himself. Self surrender is synonymous with eternal happiness.
Ramana Maharshi