From birth to death, every living being is completely dependent on nature. Nature is the best. What is nature, how was it made, who made it and how does it work? Man has been constantly searching for answers to these questions and from time to time, man has been answering these questions through self-reflection. For some time, man accepts these answers and defines nature according to the given answers. According to the given definitions, man derives the meaning of nature. According to these meanings, man sees nature and tries to understand it. After some time, when the scope of a man's knowledge increases, the knowledge within him increases, then he starts searching for answers to these questions. To find answers to these questions, he tries to continuously increase the scope of his knowledge. At one time, his knowledge reaches the peak of cleanliness from where he starts experiencing self-knowledge and that person answers these questions on the basis of this self-knowledge. Till date, whoever has answered these questions on earth, has answered these questions on the strength of his self-knowledge. Nature has given some special power to every living being and along with it the power to think. It has also been given that man is not the only creature on earth who thinks. Every living being on earth, be it animal, bird, insect or plant, every living being that has life, thinks because every living being like human being, is connected to the nature and is a part of nature. Every living being on earth thinks in different ways. The thinking of no living being matches with each other, this is the power of nature. The only difference between the thinking of man and the rest of the living beings is that man thinks about the well being of other living beings and all other living beings think about themselves for their own selfish purposes. The definition of man is also this, the one who thinks about the well being of others, the one who has kindness and love in his heart, only he is a human being, only he is a human being, otherwise there is no difference between animal and human being.