Interesting topic to say at least. Trough my life I also noticed at least two forms of fear. One that acts as warning that is something going on, just like gauge in the car that we use so we would have more knowledge about the state of a car, and second one that has its roots in imagination. The first one, sure a useful one , second not so much more of like nightmare of wakeful state and sure product of our past, stories, movies, some events, etc.
Someone mentioned Green Lantern back few posts and it has good point in that which says that it is not fear our greatest downfall but rather not acknowledgment that we fear. Here we come to that one how most obstacles in our life are putted there by ourselves.
When I was kid (8-9 years old) I used to search for snakes and observe them what they do. My father noticed that and took me on a little chat, that will prove to be crucial point of my imaginary fear against snakes. Movies, documentaries, stories had influence on that part too, but it started with father's little chat, and from that moment on I run every time I saw a snake.
Only few years back I understood what the heck was going on with that, when I had face to face (literally) with the snake. After that hit me and I was able to process all that subconscious data that had an effect to induce that imaginary fear. Today I do the same thing when I was kid, I like to watch snakes and there is no more of that imaginary fear. Yes there is still that form of fear which says to me that I need to be on alert because you never know what can trigger snake to attack and I'm ok with that because its useful one, I understand it.
Yes even then that form of fear, if one does not understand it can stall you and that's when shit hits the fan.
And it proved to be of most value that I do not fight fear, or run from it but rather try to understand it, shred some light upon it as some would say. There is wast amount of energy in it and it would be pity to discard it or fight it, because that energy is my own and we do not blame hammer when we hit our selves with it, or do we... hehe
Here's an analogy to this above. If we think of fear as energy than every wave at the sea is only a potential and one who has no knowledge of the sea and waves will be "eaten for breakfast" by that waves, while other will surf on that same waves and use potential of the waves to enjoy, discover something deeper, self improve, etc.
I am
traceur and there is many encounters with both forms of fear mentioned here, and ones that practice Parkour do know how gravity can be a bi*ch let alone how many people get seriously hurt because they ignore that first form of fear.
So the only problem is to distinguish between these to fears and I thing solution lies in knowledge and the understanding of it. But most of people will go easy path, fight or flight without giving it little deeper insight into backbone of that fear they have... Only conscious effort will bring results to one, that has been a great lesson for me and more and more it proves to be crucial in one self improvement, the Work if u like it.