So this is going on perpetually, not perpetually, at least for many, many millions of years, for many, many millions of years. But we are, because we are fool, especially in this age of Kali, we do not understand it. Therefore it is said, sattva-saṁśuddhiḥ. You require to be cured of your, this disease, ignorance. That is called... Just like when you become infected with some disease, you go to a physician, and he gives you some injection or some medicine so that you may be cured of the extra fever or extra pain due to your disease. Similarly, those who are advanced in knowledge, their sattva, existence, is cured. That we require. Or everyone requires to be cured of this disease of ignorance. The ignorance, disease of ignorance, means "I am this body. I am this body." I am not this body. So therefore it is said, abhayaṁ sattva-saṁśuddhiḥ, sattva-saṁśuddhiḥ. And jñāna, this sattva-saṁśuddhiḥ, this purification of my existence, is possible. It is simply jñāna. Jñāna means knowledge. Because I am in ignorance, therefore I am thinking, "I am this body." So it requires a little jñāna, knowledge. Then we will understand that "I am not this body; I am different from this body." And because I am in ignorance, therefore I am thinking, "I am this body," "I am this white body," "I am this black body," "I am this American body," "I am this Indian body," "I am this cat's body" and "dog's body," so many different consciousness on account of this... Basic principle is this ignorance. Ignorance. So that we have to cure.
That is the special advantage of human life. The dogs and the cat, they cannot be cured. They cannot be given the knowledge. Because you are human being, you are together here to get this knowledge. The cats and dogs, they cannot come. They cannot take this knowledge. So we have got the advantage of getting this knowledge in this life, and again, if we go back to the cats' and dogs' knowledge, then what is the benefit of getting this body? So this civilization, this dog civilization, is so spread all over the world that it is very, very difficult to cure it. We are making little attempt, but the ignorance is so deep, the disease is so acute, it is very, very difficult. But actually the disease is there.