अङ्गुष्ठमात्रः पुरुषो मध्य आत्मनि तिष्ठति ।ईशानं भूतभव्यस्य न ततो विजुगुप्सते ॥एतद्वै तत् ॥ १२ ॥
In plain words
The Person, of the measure of a thumb, dwells in the middle of the self, in the body. Knowing him as the ruler of what has been and what is to be, one shrinks away no more thereafter. This, verily, is That.