In plain words
God is not to be had through Ahaṅkāra and show. That is why we must make the karmas we do for purity of citta free of the fruit, free of self-interest, free of Ahaṅkāra. Anyone has the right to light a lamp. A man may light it. A woman may light it. An old man may light it. A young man may light it. So all have the right to light for themselves the light of Jñāna. Each according to his capacity and in keeping with his sādhanas, each one may make the effort needed to gain this Jñāna. But as a rule every man too has karmas enjoined on him. Among these, one is called naimittika karma. The second is called kāmya karma. Niṣiddha karma is the third. Prāyaścitta karma is the fourth. Every man is bound to do all four of these without fail.
If you ask what naimittika karma is: all karmas that come about merely on an occasion they call naimittika karmas. Some of these may be vratas. Some may be nōmus. Some come round once a month, once in three months, once a year: the rites called śrāddhas. These too belong among the naimittika karmas. Eclipses of the sun and eclipses of the moon take place. The karmas done at such times to pacify the planets are naimittika karmas too. These are the naimittika karmas that ordinary men, men leading family lives, must perform.
Next, kāmya karmas. That is: the rains must fall in their season. The crops must grow. This famine must go. Plenty must come. The whole world must be at peace. One must enjoy everything oneself. One must enjoy happiness here in this world. That is, all karmas done for happiness here and hereafter and for the welfare of the world are kāmya karmas. Lokā samastā sukhino bhavantu: this, from age to age, from generation to generation, has been foremost in the tradition of the Hindu people. Only through such breadth of heart has the culture of Bhārata gone on from those days to these without any lack. What does the world mean? The life we are in. What is our world? Four kinds of division of it have come down: sālokya, sārūpya, sāmīpya and sāyujya. Now, sālokya means the kind of thought one is living with. The world does not mean the hills and hillocks, the rivers and these towns there are on the earth, all put together: that is not the world.