It seems our minds are constantly thinking even when we are not aware of it happening.
What do you think the purpose or reasoning behind it is?
I have this idea that we are just having a conversation with ourselves all of the time.
I think humans want to be involved or interacting with other humans all of the time (at least biologically), but since we are not we have developed our thinking mind.
I'm sure other animals think as well but I'm talking more a long the lines in which we humans think, specifically in language perhaps.
Why do you think we developed a mind that just chatters away, sometimes uncontrollably?
I believe human beings are rationale animals and that the only distinction between us and the animal kingdom is our rationale. AC Bhaktivedanta Swami Prabhupada Gives a wide range of evidence to back this claim. He submits that humans are not at all different than cats and dogs, but only through our intellect. There are 4 primary actions in the animal kingdom- eating, sleeping, mating and defending, So you see, we are not much different from the animals. A dog sleeps, a man sleeps. A dog eats, a man eats. A dog mates, a man mates. A dog defends his territory, a man too defends his territory. Where then, lies the difference? the difference lies in our consciousness.
This being human is a special gift. It is a gift because as humans we have taken a step up from the animal world, so that we may inquire on the absolute truth and nature of reality. This is the difference. You see, a dog is not interested in the Bhagavad-gita, you may sit there for a year and try to read it to him, but he is simply just not interested! and not just the bhagavad-gita, but any spiritual book for that matter. AS humans, our main interest should be in trying to obtain knowledge of the absolute or supreme reality. This is why we have inquiry and this is from where all curiosity branches out of.
In todays society, we have knowledge left and right, but how much of this knowledge actually means anything? I mean, yeah we have advanced technologies and tremendous buildings such as skyscrapers and what not, and we have planes that travel around the world. This is all very impressive. But none of this is true knowledge worth inquiry. How come its not? Because this life of ours is just a temporary suite, and when we quit this body, all things will be left behind other than our experiences and spiritual knowledge. All these toys that we have been playing with, they mean nothing. They are just here for sense gratification. A dog gets around on four legs and we get around on four wheels, and we call that advancement. Thats not advancement! Advancement is when you start to inquire where do we go after death, why are we here, and where did we come from? this is true inquiry and this is true knowledge. All else is false and temporary.
So then, i believe the purpose of the thinking mind is to inquire on the absolute truth and nature of reality. This is our purpose, this is our distinction as human beings.
Now this thinking mind, although it may lead us to great ecstasies, it may also lead us great miseries. The yoga sutra of Patanjali says: "This mind can be either a source of anguish, or of non anguish." The difference lies on who you are to you. Are your own master, or are you your own slave? Do you control your mind or does your mind control you?
Also, this thinking process is just like the walking process. The aim is to put it to an end so that we may experience peace. The peace experienced is similar to the joy one feels after carrying a heavy burden, such as a humungous rock. You are walking around with a boulder on your shoulders and i tell you to let it go, but you say "if i let it go, then i will have nothing left!" so there you stand holding the rock. Only once your completely sick and tired of carrying around the rock, will you let it go and youll realize "man, what was i thinking carrying that burden around?!" same holds true with the mind. The thinking process is like the walking process. If you stop walking, im not going to ask "where has your walking gone" your walking has just ceased. Same too, If you stop thinking, im not going to say " where has your thinking gone?" because the thinking process was just put to rest and when a problem occurs, you may easily start thinking again. One who is wise will realize that the thinking process is unsatisfactory, and so he is constantly not using it. By not using it, he is freed from the weight of the burden, and experiences peace.