.....
Fear is an aspect of our sub-concious mind that is often triggered when the eyes, nose, ears or Nose sensing some sort of danger approaching, just like it is in every Animal, having some Adaptive physical features in them, same applies to human.
Apart from all the physical features we have as some sort of protective adaptive features we have physically the fear mechanism in us is one of the very necesaary protective adaptive features we have, in the scenerio of any harmful event or disruptive circumstance, any of the five physical senses will quickly alert our sub-concious mind, which will inturn send a quick message to all other organ and systems in our body for a quick responsive action to be taken as to avoid any harm to the body.
Generally this ia the order of how our bodies react to anything that posses a threat to our welbeing, but as times goes on, like a circle our bodies becomes accustom to this and also sends a message back to the brain of how the body acts, this is why some persons can sense fear a threat to life itself and still subdue the body to act in the opposite .
Fears of the unknown is an illusion people have created about things unseen, fears has now leave the subconcious zone and is now a concious act, cause we believe been extra careful about things will help keep us far from danger or calamity that might befall us as an act of negligence, but then again there is a side to this.
This has actually created a pool of stagnation in many people's life, limited by their own mindset and vairous believes system, and perception about life, this usually comes with questions like what if's How Can I, Should I?, begin or stop, what will people think or say, how will they see me
Afraid of failures, mistakes, losses, risk, business initiative, afraid to kick start that ideas, those wonderful dreams aspiration, but with these fears is one of the many reasons why lots great ideas, noble visions never made it to dawn....
Today we literally making use of men and women invention that made it out of their minds to real life, because they dare it, persevere pushed, fought, strive and thrive to make it out, most times we will be forced to backdown, give up turned down, disappointed, failed, all cause we mind made up to not only dream big but aim big and chase after our dreams till we get it right...