2.30 The self within the body of everyone such as gods etc., must be considered to be eternally imperishable, though the body can be killed. Therefore, all beings from gods to immovable beings, even though they possess different forms, are all uniform and eternal in their nature as described above. The ineality and the perishableness pertain only to the bodies. Therefore, it is not fit for you to feel grief for any of the beings beginning from gods etc., and not merely for Bhisma and such others.