Aeneas carried his aged father on his back from the ruins of Troy and so do we all, whether we like it or not, perhaps even if we have never known them.
Committing to a level you'll never attain may sound ridiculous, and it is. It's a form of insanity -- something also known as life. Everything moves forward or dies. Whether or not you actually move forward is irrelevant. What matters is that you never stop trying.