Acharya Prashant explains that the essence of a living being is 'Prana', which he defines as the mind's deep restlessness and longing for peace. He clarifies that peace is only attained when this inner longing is powerful and intense, likening it to a rebellion or a deep thirst. He emphasizes that the path to truth often involves fear and discomfort, but the key is to remain present and not run away. He distinguishes between ordinary memory and 'Surati', the true remembrance of the divine, which can persist as a background presence even while one is engaged in worldly activities. This remembrance is strengthened through 'Satsang' and discipline, which means following the guidance of a teacher without argument or disobedience.