Now then, we shall expound devotion. Devotion consists of supreme love for God. It also consists of immortality. On obtaining that, man has achieved everything, he becomes immortal, he is completely satisfied. Having got it, he desires nothing else, he grieves not, he hates nothing, he delights not in anything else, he strives for nothing; having realized which, man becomes as if intoxicated, and benumbed; he delights in his own intrinsic bliss.
Devotion is not like ordinary passion, as it is the suppression of all other preoccupations. This suppression of preoccupations is the giving up of the activities of the world as well as those (namely, the rituals) ordained by the Vedas.
Devotion is complete and exclusive absorption in God and indifference to things opposed to Him. Completeness or exclusiveness of devotion to Him means abandoning of anything else or anybody else as one's prop and support. And indifference to things opposed to Him means the doing and observance of only those things in the world or the Vedas which are conducive to devotion towards Him.