Advanced updakrama in navakaraṇa vinyāsa with Dario Calvaruso. The upakrama (pre-sequence or warm up) is built in 18 matra-s, 3 breaths / 6 mantra-s for entering the posture (adho mukhā  śvānāsana / downward facing dog posture), 3 breaths / 6 matra-s in the posture and 3 breaths / 6 mantra-s to exit the posture.