In plain words
Ahaṃ vaiśvānaro bhūtvā prāṇināṃ dehamāśritaḥ. ‘Dwelling in this body, I am in your very stomach as Vaiśvānara,’ He said. Whatever substance you put into your stomach, it digests that substance and supplies the same. So if you give your digestive fire a substance with bad feeling in it, from there it gives you only a bad result. If you give your digestive fire a substance with pure feelings, from there it gives you a pure result. So our thoughts alone are the root cause of good fortune and misfortune. From the seed called thoughts the fruits called karmas arise. From the seed called karmas the fruits called habits arise. From the seed called habits comes the fruit called character. From the seed called character the fruits called good fortune are gained. So the seed called character is the basis of our good fortune. For the fruit called character, our habit is the basis. For this habit, karma is the basis. For this karma our thoughts are the root. So our good fortune and misfortune depend on thoughts alone. So we must develop our thoughts in the right way.
We must try to recognise the law of thought well. We must enquire into its workings with a broad heart. It is not good for us to give thoughts the form of action the moment they come. Is it good? Is it bad? We must enquire: is this fit to be done, or not fit to be done? We must also enquire whether this will bring good to society or to me, or bring harm. So all through life our good fortune and misfortune depend on our own thoughts, and others are not the doers of it, nor its cause. Out of some weakness of ours we delude ourselves: ‘This happened to me because of them; that happened because of these people.’ Our thoughts alone are the cause of our joys and sorrows. Our thoughts alone are the cause of our troubles and our happiness. So only the man who has developed good thoughts becomes fit to experience lordship over all in this world.
So to strengthen such divine faith, we must constantly utter this Name of five syllables, a mantra of this kind: God is there, He is there, God is there. Brahmavit brahmaiva bhavati. One who knows the principle of Brahman becomes Brahman.