We are concerned only with what this body is at present, what relations there are with this body at this moment of time, in this present life of ours. This is the worst type of ignorance in which one can be shrouded. But death and life are not fundamentally isolated experiences. When memory persists, we call it sleep. We die because of desires, and we are reborn on account of desires.
Desires are propulsions of our individual nature towards certain types of experience.
These propulsions which we call desires demand contact with certain groups of physical objects. That which we usually call the Prarabdha is nothing but the power or the force of those kinds of desires which have not been fulfilled in our previous lives, but which have to be fulfilled in this present empirical life of the bodily individuality. When these desires are exhausted by experience through this particular given bodily individuality, the body is shed. Death is, therefore, due to the exhaustion of the momentum of that set of desires which we call the Prarabdha, and which cannot anymore work out their function through this particular body. When a particular part is played by a dramatic personality, when an enactment is over, there is an exit of that personality, because its function is over, one is no more concerned with that personality, and the screen drops.