By study he destroys the Karman which obstructs right knowledge. By the recital of the sacred texts he obtains destruction of Karman, and contributes to preserve the sacred lore, … By questioning (the teacher) he arrives at a correct comprehension of the Sûtra and its meaning, and he puts an end to the Karman which produces doubts and delusion.
'Now that which is that subtile essence (the root of all), in it all that exists has its self. It is the True. It is the Self, and thou, O Svetaketu, art it.'
Through zeal knowledge is gotten, through lack of zeal knowledge is lost; let a man who knows this double path of gain and loss thus place himself that knowledge may grow.
Little is known by any one but the spiritual man, / Who has in his heart a touchstone of vital truth. / The others, hovering between two opinions, / Fly towards their nest on a single wing. / Knowledge has two wings, opinion only one wing; / Opinion is weak and lopsided in its flight. …