One following the duties of the mendicant order should restrain his senses and the mind like a tortoise withdrawing its outstretched limbs.
प्रसार्येह यथाङ्गानि कूर्मः संहरते पुनः। तथेन्द्रियाणि मनसा संयन्तव्यानि भिक्षुणा॥