This lesson discusses the concept of the soul and its relationship to the body and mind, drawing upon the teachings of the Bhagavad Gita. It argues that the true self is the soul, which remains unchanged despite physical death, and that nurturing the soul requires overcoming the desires and limitations of the body and mind. This is achieved by dedicating oneself to devotion and love for Krishna, which ultimately leads to spiritual purity and salvation. The text then provides practical applications of these principles for teenagers, parents, professionals, and entrepreneurs, highlighting the importance of inner peace and spiritual growth in all aspects of life.