This is a yantra, machine. I am not this machine, but this machine has been given to me to move. Just like you get a car to move. Especially mentioned, yantra. Yantra, just like a car is machine, but you are not the car. Suppose if you want a car to move. Your father gives you a car, maybe costly or not. That depends on the father's condition or your condition. But the father or the..., you purchase. But here it is said that the..., because we want to move in this material world under difference desires, so Kṛṣṇa gives us different types of bodies, 8,400,000 different species of yantra. They are just like machine, yantrārūḍhāni, and that machine is made by māyā, this material energy. That is not spiritual energy. I am spiritual energy; you are spiritual energy. But this vehicle, or the car, or the moving machine, that is not spiritual. That is material. Yantrārūḍhāni māyayā (BG 18.61). It is given by māyā. Prakṛteḥ kriyamāṇāni guṇaiḥ... (BG 3.27). We are in a machine made by māyā. And so long we are on this machine, the machine will be old and you will have to change it for another machine. That is going on. That is called janma-mṛtyu. That is called birth and death. Otherwise you and me, we have no birth and death. Na jāyate na mriyate vā kadācit. The soul, or the Brahman, he does not take birth or dies. Simply we change this machine, body. Na hanyate hanyamāne śarīre (BG 2.20). You are driving one car. If the car is broken or it is smashed, that does not mean you are smashed. You may have some accident, but you are not finished; the car may be finished. Similarly, na hanyate hanyamāne śarīre (BG 2.20). Similarly, this body being finished, we are not finished. Tathā dehāntara-prāptiḥ (BG 2.13), we get another car, another body, just like we are getting different bodies in this life.
So the question is that if I am nityaḥ śāśvataḥ, na hanyate han... and my position is I never die, never take birth, so why I have been put into this condition, accepting this machine? That is real problem. That is real problem. Then what is the cause? That cause is that because I want to enjoy this material world. What is that material world? Here it is said, rāyaḥ paśavo gṛhāḥ. Rāyaḥ means wealth. Formerly a man was considered to be wealthy—now also it is... Dhānyena dhanavān, gavayā dhanavān. If you have got many number of cows, then you are considered to be rich man, not papers. Nowadays, if you have got bunch of paper written "one thousand dollar," but they are paper only. You are dhanavān. Formerly, practical. Not dhanavān by the papers, by the currency notes, but by how many cows you possess, because that is life. You get milk. And dhānyena, if you have got food grains, then you are rich, not by possessing some paper. No. Therefore it it said here, rāyaḥ paśavo gṛhāḥ. So these are the material possession.