Sanskrit

मध्यनाडी मध्यसंस्था बिससूत्राभरूपया।
ध्यातान्तर्व्योमया देव्या तया देवः प्रकाशते॥ ३५॥

Transliteration

madhyanāḍī madhyasaṁsthā bisasūtrābharūpayā |
dhyātāntarvyomayā devyā tayā devaḥ prakāśate || 35 ||

Translation

One should meditate on the inner space of the medial nadi (sushumna) situated in the central axis of the body (the spinal column), which is as slender as a fibre of the lotus stem, and then by the grace of Devi, the divine (form) is revealed.