Acharya Prashant explains that nature is not merely external elements like rivers, mountains, and trees, but primarily includes our own intellect, memory, and brain. He asserts that the human brain operates under fixed natural laws, much like the physical world, and therefore cannot be considered true consciousness. True consciousness is distinct from the brain and mind. He defines a 'Purush' as one who can remain untouched by natural processes such as aging or emotions like anger. Most people are merely part of nature, driven by its laws without any real control over their internal or external environment.