Acharya Prashant explains that life is not a mysterious or unknown quantity to be attained; rather, it is the simple fact of being alive in the present moment. He emphasizes that life exists only here and now, as one cannot breathe in the past or the future. Therefore, life is a straightforward matter of living in the current moment, whether one is sitting, thinking, or paying attention. The quality of life is determined by the quality of one's presence in each moment. If the mind is wandering or stuck in the past, the quality of life is poor because the individual is not truly present to face the challenges of the moment.