O great hermit! I am going to describe about Pratyahara. Pratyahara is a process by which all sensory organs usually enjoying and attracted towards the worldly pleasures are to call back forcibly. Whatever is observed by a man, that all is Brahma and this presumption or understanding when attained, the concentration of mind thereupon is called 'Pratyahara' as it is defined by the person, known to Brahma.