In climbing you are always faced with new problems in which you must perform using intuitive movements, and then later analyze them to figure out why they work, and then learn from them.
Doing a route at the absolute limit of the possible demands and encourages a coordination of all peripheral factors. It is, at the same time, a sign of joy and contentment with that moment, perhaps even a mirror of the equlibrium in your inner spirit, a mirror of a liberated state of mind.