This (Samana) transforming itself to Apana air and supported by the head of the stomach carries the refuge matter of the body, such as urine to the kidneys and intestines.
बस्तिमूलं गुदं चैव पावकं समुपाश्रितः। वहन् मूत्रं पूरीषं वाप्यपान: परिवर्तते॥