Our Real Life
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touch is soft. And then again, from water to fire, still finer. After fire or electricity the air is still finer; and after air, the sky, ether, is finer still. Beyond ether, the mind is still finer; and beyond the mind, intelligence is still finer. And, if you go beyond intelligence to understand the soul, it is finer still. From these elements people have discovered so many sciences. There are many scientists, for example, who are soil experts; they can say, by analyzing a particular type of earth, what kind of minerals are there. Somebody seeks out silver, somebody seeks out gold, somebody seeks out mica. This is knowledge of gross things—the earth. If you go to finer substances, then you study water, or liquid things, such as petrol and alcohol. Go still finer, and from water you will go to fire and electricity. If you study electricity, you have to study all sorts of books. And, from this finer fire, you will come to air. We have so much advancement in our airplanes; we are studying how they move, how they are made—now sputniks and jets—so many things are being discovered.
Next comes the study of the ethereal: electronics, ethereal transformations from one thing to another. Then, finer still, is the mind—psychology and psychiatry. But for intelligence, rationalism, there is only a little philosophical speculation. And what about the soul? Is there any science of the soul? The materialists have none. Material science has advanced to the study of the ether, or the mind and intelligence, but there is no advancement beyond that. Beyond intelligence, they do not know what exists. But here in the  Bhagavad-gītā  you can find this.
The  Bhagavad-gītā  begins at the point after intelligence. When Arjuna was perplexed at the outset, his intelligence was perplexed—whether to fight or not to fight. Kṛṣṇa begins the  Gītā  from the point where intelligence fails. How does knowledge of the soul begin? It is just like a child is playing. You can understand this child's body is now so small, but one day