You cannot understand fear.
Knowing well it is not connected to our brain.

We learn Martial Arts to conquer fear but fear has nothing to do with self defenses because fear originates from the entire body and not from one place, especially the brain. Our so-called intelligent brain can think how to conquer fear, and suggest learning Martial Art hence you can be brave enough to overcome fear. But it is total waste, fear has to be faced then a little awareness is enough to overcome such fear.

Fear is essential hence don’t suppress it as a weakness. Even if you try it, it cannot be suppressed, that is the truth. Fear is a signal you’re not in the right place or right environment to do things. Just move out of the place whenever fear strikes, postpone a little until the same fear supplies you with enough material to handle..

Fear is so good and it helps human species to survive.
Never say, you’re going to conquer fear, the moment you conquered fear, you’re dead.