Maha Mudra (The Great Attitude)
Padamulena vamena yonim sampidya dakshinam/
Prasaritam padam krtva karabhyam dharayeddrdham//(Chapter -3, Verse 10).
Press the left heel into the perineum or vagina, straighten the right leg, and with the hands, strongly take hold of the outstretched foot. (Chapter -3, Verse 10).
Kanthe bandham samaropya dharayed vayum urdhvatah /
Yatha dandahatah sarpo dandakarah prajayate//(Chapter -3, Verse 11).
By locking the throat and holding the breath, the prana rises straight, just like a snake beaten with a stick becomes straight. (Chapter -3, Verse 11).
Rjvibhuta tatha saktih kundali sahasa bhavet/
Tada sa maranavastha jayate dviputasraya//(Chapter -3, Verse 12).
So the kundalini sakti becomes very straight at once. Then the ida and pingala nadi become lifeless as the sakti enters into the sushumna nadi. (Chapter -3, Verse 12).
Tatah sanaih sanaireva rechayennaiva veghatah/
Mahamudram cha tenaiva vadanti vibudhottamāh//(Chapter -3, Verse 13).
Then breathe out slowly and gradually, not quickly. Indeed this is explained as maha mudra by the great siddhas. (Chapter -3, Verse 13).