The reflection, the verisimilitude, of life that shines in the fleshly cells from the soul source is the only cause of man's attachment to his body; obviously he would not pay solicitous homage to a clod of clay. A human being falsely identifies himself with his physical form because the life currents from the soul are breath-conveyed into the flesh with such intense power that man mistakes the effect for a cause, and idolatrously imagines the body to have life of its own.
An adept of Kriya Yoga conquers death by taking the soul beyond identification with the physical body, consciously and at will; and then returning to the consciousness of the mortal form again. By this process, he experiences the body as merely the material dwelling place of the soul. He can remain therein as long as he wants; and after that body has fulfilled its usefulness, he can quit it at will without suffering physical pain or mental pain due to attachment, and enter his omnipresent home in God.
In the spiritual life one becomes just like a little child, without resentment, without attachment, full of life and joy.