In plain words
Who is the maker who makes this tumbler? The goldsmith. Who creates the silver? God. What has this tumbler been made from? It has been made from silver. Who knows how this tumbler is made? That very one, the goldsmith. This tumbler, the instrumental cause, the silver, the material cause, and the goldsmith who made this tumbler: the three are there as three kinds. To make this small tumbler there must be someone. To create so great a world, need there not be someone?
When there is a heap of embers at the root of the smoke, when there is a driver who runs the railway train, when even an automatic light has its limits, must there not be One to create the world?
What is the material cause for creating this world? What is the instrumental cause? Who is the one who created it? For this, the material cause, the instrumental cause and the One who created, the three, have become One alone. This material cause is God's will. God's will itself is the root cause of creation. Eko'haṃ bahu syāṃ. To recognise this principle of creation we need not search for a material cause and an instrumental cause. The material cause, the instrumental cause, everything is God alone. That is why they called Him all-knowing, all-pervading, almighty. If we want to recognise that principle of all-knowingness, we must go near to all-knowingness. The Upaniṣads alone show that nearness, they said. So if we want to attain divinity, we must foster divinity.
We must practise akarmas. Does akarma mean sitting like idlers without doing any karma? All karmas done in rooting out Ahaṅkāra are akarmas. All karmas done in Ahaṅkāra are hindrances. So all karmas we do free of Ahaṅkāra take shape as akarmas. From this akarma it comes into vikarma. From vikarma it comes into niṣkāma karma. This very niṣkāma karma we must offer to God. That is precisely why: this alone is the root reason for teaching the principle of karma, akarma and vikarma in the Bhagavad Gītā. Whatever subject we study, take Chemistry, take Physics, take Botany, take Zoology, whatever it may be, we must go on spreading it along the right path. We must show greater use at less cost. If we are to develop these two, we must foster Individual character, national character. As important as my body is to me, so important is my country to me, and my support. As important as the mother who bore me is to me, just so important is the country that gave me birth.