In plain words
To Pārtha, who on many grounds had said 'I will not wage war', He said: 'You are born into a kṣatriya lineage; for a kṣatriya there is one lineage-duty. Do not act by casting aside that varṇa-duty which is war.' Man is subject to the guṇas of Prakṛti; therefore he keeps performing some karma or other -- he cannot remain without doing karma even for a single moment. So, understanding this, do not abandon your caste-duty' -- this is the beneficial counsel He gave. Does 'karma' mean, then, only labour suitable for procuring food and the like? Aeroplanes, boats, factories, hospitals and schemes for producing food must not alone be called the domain of karma. This alone is called merely worldly karma. Worldly and spiritual matters are linked to the divine. For happiness in this world, all such karmas are unavoidable. Whatever degree of deficiency there is in the carrying out of such action, to that same degree the happiness felt by the individual, by society, and by the country falls short. On this point, two opinions cannot exist. But if the same importance given to the worldly is also given to otherworldly karma, we need not grieve.
Let us also examine a little the relation that exists between worldly karmas and the divine. We plough the field well, having first strengthened it. We sow good seeds in it. We transplant it at the proper time, weed it, and water it. We fence it well and keep watch over it. Suppose we do each karma properly and with enthusiasm, each in its own place. Even with all that, what guarantee is there that the fruit of our karma will reach our home unimpeded? Because of lack of water in the canals, or because of excessive rain or drought, or because of diseases or pests, the crop perishes. In such a disappointing situation, it is not proper to kill the human spirit in despair. If the rains do not fall, suppose that, by means of aeroplanes into the sky, or