न बहिर्नान्तरे नाधो नोर्ध्वे नार्थे न शून्यके ।संयोजितमनोदृष्टिर्दन्तैर्दन्तानसंस्पृशन्
In plain words
neither outward nor inward, neither below nor above, neither on an object nor in the void, his mind and gaze fixed together, not letting tooth touch tooth,