In plain words
This very Satya protects the whole world, satisfying hunger, giving strength, bringing health. Satya means creating living beings, giving them food suited to them, and sustaining life with this food: this itself is the inner meaning of Satya.
Satya is nothing but the power of tapas joined with yama and niyama
Then, the second meaning: ‘satya’ is made of the three syllables ‘sa’, ‘ta’ and ‘ya’. You must see what meaning comes when you read these three syllables in order from the end. ‘Ya’ means this: when a human being, through yama and niyama, does ‘ta’, tapas, Satya, the syllable ‘sa’, becomes manifest. This very Satya is God. Where is such Satya? It is everywhere. There is no place without Satya. There is no thing that is not Satya. Everything is contained in Satya itself. So Satya is never negated in the three times. The power of tapas joined with yama and niyama is itself Satya. This tapas is nothing but realisation, whose form is Satya. If you ask where Satya is: “Satyaṃ jñānam anantaṃ brahma.” Satya itself is Jñāna. What does Jñāna mean? “The vision of non-duality is Jñāna.” That which is not two, which is one alone. That itself is Satya. The meaning is that such Satya is gained through Jñāna. Jñāna is that which is infinite; the knowledge we have read, a little here and a little there, through books, is not Jñāna. Only the infinite principle is Jñāna. It has no beginning. It has no end. Satya itself teaches that infinite principle of Jñāna. So Satya does not mean merely the inner sense of the words we experience and speak in the worldly form. Satya is the birthplace of the infinite Vedas. This Satya is the very form of the Vedas. In the word ‘satyamu’ there is any amount of inner meaning. If we let go of Satya, there is no world at all. From time without beginning many maharṣis, those rich in tapas, renunciants and yogis, have taken refuge in this Satya and lived in Ānanda. All riches and wealth, all enjoyments and good fortune are contained in this Satya itself. So Satya does not mean merely talking together in the worldly sense.