The life of man is an indication of what is beyond him and what determines the course of his thoughts, feelings and actions. The wider life is invisible, and the visible is a shadow cast by the invisible which is the real. The shadow gives an idea of the substance, and one can pursue the path to the true substance by the perception of the shadow. Human existence, by the fact of its limitations, wants and various forms of restlessness, discontent and sorrow, points to a higher desired end, incomprehensible though the nature of this end be.

As life on this earth is characterised by incessant change, and nothing here seems to have the character of reality, nothing here can satisfy man completely. The Bhagavad Gita has referred to this world as anityam, asukham, duhkhalayam, ashashvatam..Impermanent, unhappy, the abode of sorrow, transient..