This kriya continues directly from the last kriya. Eyes are open, breath is fully exhaled, tongue is in Kechari Mudra, head is drooped forward, and your focus is on Mooladhara for 3 or 4 seconds. Begin Ujjayi inhalation while moving your concentration along the Arohan passage up the front of the body through the Kshetrams. As you ascend, be aware of the sound of the breath which takes the form of the mantra "SO". Do not mentally repeat the names of each Kshetram as you pass by them.
At Vishuddhi, move your head up and droop it back as your concentration reaches Bindu. Hold your breath and maintain your concentration at Bindu for 3 or 4 seconds. Begin Ujjayi exhalation and move your head to a forward facing position. Close your eyes in Unmani Mudra while moving your concentration along the Awarohan passage down the back of the body through the Chakras. As you descend, be aware of the sound of the breath which takes the form of the mantra "HAM". Do not mentally repeat the names of each Chakra as you pass by them. At Mooladhara, open your eyes and droop your head forward to begin the next round. Complete eleven rounds, then go to the next kriya.
A video describing and demonstrating this kriya is presented below.