Mahabharata 12.193.18

निश्चेष्टाभ्यां शरीराभ्यां स्थिरदृष्टी समाहितौजितासनौ तथाधाय मूर्धन्यात्मानमेव च

niśceṣṭābhyāṃ śarīrābhyāṃ sthiradṛṣṭī samāhitaujitāsanau tathādhāya mūrdhanyātmānameva ca

Our plain-language meaning of this verse is waiting for scholar review.