Obstacles are found everywhere, and in overcoming them we nourish ourselves.
If you are in front of a wall that you cannot get past, would you just keep banging your head into the wall?... No, you would find a new wall.
There are no limits, only obstacles, and any obstacle can be overcome.
A little backflip (backflips), but it's not part of Parkour, but i like doing this since i did gym.
Parkour teaches you to be sure of what you are able to do.
Without training you will not grow wings.