एष सर्वेषु भूतेषु गूढोऽऽत्मा न प्रकाशते ।दृश्यते त्वग्र्यया बुद्ध्या सूक्ष्मया सूक्ष्मदर्शिभिः ॥ १२ ॥
In plain words
This Self, hidden in all beings, does not shine forth [to ordinary sight]; but it is seen by the foremost, subtle intellect, by those seers who see the subtle.