To achieve that state of lasting happiness and absolute peace, we must first know how to calm the mind, to concentrate and go beyond the mind. By turning the mind's concentration inward, upon the self, we can deepen that experience of perfect concentration. This is the state of Meditation.
SivanandaThe mental ability to concentrate is inherent to all; it is not extraordinary or mysterious. Meditation is not something that a Yogi has to teach you; you already have the ability to shut out thoughts.
SivanandaThe human intellect has not been able to conceive of anything more noble and sublime in the history of the world than the teachings of the Upanishads.
SivanandaEvery temptation that is resisted, every evil thought that is curbed, every desire that is subdued, every bitter word that is withheld, every noble aspiration that is encouraged, every sublime thought that is cultivated, adds to the development of will-force, good character, and attainment of eternal bliss and immortality.
Sivananda