All this is for the habitation by the Lord, it doesn't say, I'll just give you another word, which may seem similar but that is not what is meant, all this is the habitation by the Lord, it doesn't say all this is the habitation by the Lord, he doesn't say all this is for habitation by the Lord. īśāvāsyam, vāsyam means that which is meant for, it's not the habitation.
All this that you see is a habitation in which you and I live already but this Upanishad says it is actually meant for the habitation by the Lord, not by you. All this is for what, all this is here is for habitation by the Lord and you've occupied it, saying this is my house, this is his house. But this Upanishad starts by saying, look it for habitation by the Lord, you invite the Lord, let him live there, − this is a great injunction. The kind of life that we are living in which we think that we can occupy this house or that house and what is this habitation, whatsoever is individual universe in universal motion, whatsoever, anything in the world that is moving and you know that everything is moving in the world.
Modern physics has pointed out that even this table even now it is moving although you can see it is stable because if you break it and go up to the atoms, what are the atoms, they are constantly in motion, uncontrollably in motion you can't keep them at rest at all, constantly in motion automatically. So, whether you take a small little thing in the world, a particle of sand, even it is in individual motion, individual movement. You take the whole universe, the whole sky and all the galaxies, beyond galaxies, − the whole universe, everything is in motion. These Rishis knew the extent of the universe, which the modern people are only now able to find out. At one time Europeans believed that there is a stable, it is only in the 20th century that there is something which is stable, which does not move, it can be moved but it itself is not moving but then the modern physics discovered that what you see to be stable, what you consider stable is consisting of atoms and no atom is empty. It is not stable, it is in constant motion, very regular motion that is, the nucleus is the centre of it, there is proton and there are electrons and there is a special kind of movement of the electrons and protons around the nucleus. So, there are nucleus, protons, and electrons and now they have found out that there are number of such elements, not only two or three, there are mesons for example in that little thing, but all of them are in motion that is the important point. This was known in those ages. You can see how much they must have penetrated beyond the language, beyond the words, beyond the senses and how much experience they must have gained to be able to write this long ago that all this is universe is in motion. There is nothing, which is stable and that is what is written in the Isha Upanishad.
What is the age of this Upanishad how long back was it written, there are no dates given here. So, we do not know as to when it was written. In India we say that long, long ago it was said, but the modern people always feel, don't say long ago, please tell us when exactly, very difficult question to answer because these people did not write the dates on which they wrote. But it is said that the Vedas themselves were composed at least 4500 BC, this is a very modest, very conservative, very Catholic estimate. Now 4500 BC from now is what, today we are in 2000; so 6500 years before the present date Vedas were composed. Then decades past, centuries past, millennia past until this Vedic knowledge was buried, not known, until then the knowledge was buried, it was very difficult to find out, then the Upanishadic seers came on the scene and they made an effort. So let us say at least 2000 years must have passed when the Vedic knowledge was buried, so if that is so then this must have been 2500 BC. I am only giving you conservative figures, only by speculation by thinking by guessing not by any historical evidence but at least this much if not more. So 4000 years before atomic physics was discovered in our own times this Rishi who wrote must be a very, very great sage as Sri Aurobindo says in one of his writings are very great sage, so ripe, so wise, such a great master of your life. He had mastered both this world and the other world and the supreme such a wise man, he wrote and in one sentence he writes not that he writes books and books on it but no only in one sentence. Whatever the individual motion there is individual means the atomic movement whatever is the individual motion in the vast motion of the whole universe, jagatyām jagat, that is Sanskrit all that is moving in the vast universe this is the nature of this universe so vast, but remember it is for habitation even the starlet is very far is also for habitation even the seas that you see are also for habitation the lands are also for habitation everything is for habitation. But habitation by whom, that is the master stroke it is for habitation by the Lord makes a great knowledge being given there is a Lord first of all it's the knowledge given to your there is a Lord as distinguished from you because you think that you are living here. You are actually occupying somebody else's house is not for you it is meant for the Lord your only permitted to space you want but it is not your house is for habitation by the Lord the Lord himself the supreme Lord. What is Lord we will see later on but at present we just keep the word so that it gives you some imagination master supreme all these words can give you some ideas some feelings as to what must be the Lord.
We shall take the second sentence
Tena tyaktena bhuñjīthā mā grdhah kasya svid dhanam. We shall see tomorrow.