Keepसंकल्पेन मनः पुष्ट्वा शरीरं बालयक्षवत् ।आयुरेवाशनान्यस्मै स्वदुःखानि प्रयच्छतिIn plain wordsThe body, having fattened the mind on saṃkalpa -- like the yakṣa a child imagines -- offers it, as food, its very life-span: its own sorrows.