what it means to be me

we are constantly confronted with fear. sometimes we dare to face them. sometimes they take up so much space that there is little left for freedom. they paralyze us at times. sometimes we break under their weight and other times they enable us to overcome our boundaries. at the end of the road we aim to make them complicit and use them as strength rather than weakness.
but where is the origin of fear? what evokes the feeling of anxiety and when does it come creeping in?