The natural evolutionary process is a continuous process. We do not realize it since it is very slow in the relation of human lifespan on the earth, but it is going on its pace at this moment also, it is happening everywhere, it is happening in-universe, it is happening on the planet, and it is happening right there inside our body. Every moment in our body many cells are taking birth, and many cells are dying, we have discussed it earlier that how this process is kept on going in our body every moment. Our thought processes are also like this natural mechanism; it keeps on generating thoughts, positive thoughts, negative thoughts, critical thoughts, etc. Our brain is like a factory of thoughts, where all kind of thought processes keep on working to generate thought 24 hours a day, even when we are sleeping our brain keep on creating thoughts which appeared us in the forms of our dreams.
Why does it happen? How is it possible that a process taking millions and millions of year get repeated within a few months or years? The answer is in our DNA. The coding in human DNA also went through the same process of evolution to come in present coding. So, we have the swift repetition of a long evolutionary process completed within a few months and years. In the evolutionary process, a simple biological system developed into a complex and more intelligent one.
Our thought process also goes through the same process of evolutionary development. We have discussed it in the previous chapter how the biological and physiological development of our brain occurs during our life cycle. From the start of our life in embryonic life to adulthood, like every other organ and their functionality, our brain, and its thought process also follow the same sequence of evolutionary development from simple thoughts of basic needs to maintain life to complex ideas of spirituality and self-actualization.
The famous English naturalist and scientist Charles Darwin published a ‘Theory Of Natural Selection’ in his book ‘Origin Of Species’ in 1859. This theory changes the existing concepts of development of life at that time which includes the divine design (origin of life by God or some supernatural power) and extraterrestrial origin of life. Our understanding of the creation of life and evolution of life in the present complex form on earth took new shape. This theory is also referred as Darwinism. According to this theory evolution of species occurs through a natural biological process from simple to complex, and only those species survived which developed themselves according to their environment, which cannot do that, they extinct. Later on, with many breakthrough research in molecular biology and genetics leads to the modern synthesis theory of the origin of life and development in the early 20th century, which revived Darwinism in an updated form with scientific investigations and experiments.
These scientific facts helped in our understanding of life and its existence on earth. It also enabled us to improve our social and cultural development processes. Naturally, our thought process which created the concepts of humanity and human values also develop through the sequences of natural evolutionary mechanism, from simple to complex one. It is our brain, and it's different amazing thought processes which gave us an extra edge in our survival as a human race which has developed the extraordinary capabilities of consciousness and intelligence.
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