So pure self becomes mind . Mind is identified self . It is designed to experiences ups n downs of this world . But all the time its searching for the permanent peace( or fulfillment ) that is in its source , as source. This identified self experiences lifetimes looking for the fulfillment . It is searching for it in temporary ever changing world. Its searching for itself, the source of permanent peace n fulfillment . It will be an effort to keep the attention at the source till the time its not an effort . I need to do that effort