TAITTIRĪYA UPANISHAD · 1.6

स य एषोऽन्तर्हृदय आकाशः ।
तस्मिन्नयं पुरुषो मनोमयः । अमृतो हिरण्मयः ।
अन्तरेण तालुके । य एषस्तन इवावलम्बते । सेन्द्रयोनिः ।
यत्रासौ केशान्तो विवर्तते । व्यपोह्य शीर्षकपाले ।
भूरित्यग्नौ प्रतितिष्ठति । भुव इति वायौ ।

सुवरित्यादित्ये । मह इति ब्रह्मणि । आप्नोति स्वाराज्यम् ।
आप्नोति मनसस्पतिम् । वाक्पतिश्चक्षुष्पतिः ।
श्रोत्रपतिर्विज्ञानपतिः । एतत्ततो भवति ।
आकाशशरीरं ब्रह्म ।
सत्यात्म प्राणारामं मन आनन्दम् ।
शान्तिसमृद्धममृतम् ।
इति प्राचीन योग्योपास्व ।

sa ya eṣo’ntarhṛdaya ākāśaḥ ।
tasminnayaṃ puruṣo manomayaḥ । amṛto hiraṇmayaḥ ।
antareṇa tāluke । ya eṣastana ivāvalambate । sendrayoniḥ ।
yatrāsau keśānto vivartate । vyapohya śīrṣakapāle ।
bhūrityagnau pratitiṣṭhati । bhuva iti vāyau ।

suvarityāditye । maha iti brahmaṇi । āpnoti svārājyam ।
āpnoti manasaspatim । vākpatiścakṣuṣpatiḥ ।
śrotrapatirvijñānapatiḥ । etattato bhavati ।
ākāśaśarīraṃ brahma ।
satyātma prāṇārāmaṃ mana ānandam ।
śāntisamṛddhamamṛtam ।
iti prācīna yogyopāsva ।

Lo this heaven of ether which is in the heart within, there dwelleth the Being who is all Mind, the radiant & golden Immortal. Between the two palates, this that hangeth down like the breast of a woman, is the womb of Indra; yea where the hair at its end whirleth round like an eddy, there it divideth the skull and pusheth through it. As Bhûr He is established in Agni, as Bhuvar in Vaiou, as Suvar in the Sun, as Mahas in the Eternal. He attaineth to the kingdom of Himself; He attaineth to be the Lord of Mind; He becometh Lord of Speech, Lord of Sight, Lord of Hearing, Lord of the Knowledge. Thereafter this too He becometh, — the Eternal whose body is all ethereal space, whose soul is Truth, whose bliss is in Mind, who taketh His ease in Prana, the Rich in Peace, the Immortal. As such, O son of the ancient Yoga, do thou adore Him.

Sri Aurobindo · CWSA 18, pp. 210, 211