In plain words
The first is ādhyātmika sorrow, the second ādhibhautika sorrow, the third ādhidaivika sorrow. Ādhyātmika sorrow means the pains of the diseases that have come to the body and the mind. Many kinds of disease come upon the body. It is through these diseases that man falls into sorrows of many kinds. Even if the body is in good health, diseases of the mind too keep coming in, many of them, through the senses. The diseases that enter through the senses give the mind still more pain. So ādhyātmika sorrow means the ills of body and mind. Next, ādhibhautika sorrow: dangers come to our life from snakes, from cattle, from wild beasts, or from creatures of some other kind. Ādhibhautika means the sorrows that come from the beings of the world. Ādhidaivika sorrow means sorrows that are divine, that is, unlooked for, such as too much rain or no rain, earthquakes, rivers all in flood, fires; these keep pursuing us. At a moment we never expected, all at once, thunderbolts bring pain. This is ādhidaivika. It is our own senses that keep bringing about the remedy for sorrows like these.
Of all these, the chief is the tongue. When we cultivate speech that is Satya, without speaking too much, with measured speech, the power of the mind grows all the more. Measured speech and kindly speech are most necessary. By Satya, any task, however great, can be achieved easily and without effort. Satya alone is the foundation of all dharmas. ‘Satyān nāsti puro dharmaḥ.’ This Satya too: ‘anudvegakaraṃ vākyaṃ satyaṃ prīti hitañcayat’. It must be pleasing, beneficial and free from agitation. By Satya one can save one's life. One can even bring it back. Sāvitrī was the only daughter of the great king Aśvapati. He had given his word that he would give her in marriage to Satyavān. Meanwhile Nārada came in. “Aśvapati! You are making a great mistake. You hope that your only daughter will remain a happily married wife for all time and give you the joy that is right for you. But Satyavān has only one year of life. After that your daughter will have to fall into great hardship,” he said. He did his work and went away. The father sank into deep sorrow. He came to his child and explained to her all that Nārada had said. Sāvitrī said, “Father! The word is one. Satya itself is the form of God. When we give up Satya, we become those who have slighted God. Once we have given up God, what can we achieve?