During his Mahamudra commentary, Gyumed Khensur Rinpoche Losang Jampa explained the 8 point Vairochana posture. The first seven points describe the physical body posture. The 8th point is the meditation on counting the breath. After describing how to do the meditation, he said that we should not underestimate the effectiveness of this practice. Done correctly, it can lead to the generation of calm abiding.
Rinpoche advised us to do the practice in the morning. By counting 1,000 cycles of breath (one cycle being an inhalation and exhalation) for ten days in a row, we will definitely experience a cumulative effect — it will prevent illness, extend our life span and cause joy and a sense of ease.