Breathe through the pores of your skin and remember that the skin covers our entire body. Focus on the in going breath, entering the pores and then the cells. Each and every cell is being nourished by the prana in the breath. A deep exhalation and visualise the toxins and carbon-dioxide being being expelled through the cells, and then through the pores.
Practice 54 times and the counting has to start backwards. No errors otherwise you start again.
Feel the change in yourself.