sva-gobhih-by expansion of his own illuminating rays; pitr-devebhyah-unto the pitas and the demigods; vibhajan-dividing; krsna-suklayoh-into the two fortnights, dark and light; prajanam-of the citizens; sarvasam-of all; raja-the king; andhah-food grains; somah-the moon-god; nah-toward us; astu-let him remain favorable; iti-thus.