One is noble in so far as one feels that one has metaphysical obligations to rise up to — that one has something above one's self, calling "you, — weak, lazy creature — rise up to me!". That voice, that obligation, that honor of living up to one's noble lineage, is what characterized our ancestors.
Its antithesis is the voice of lethargy, apathy, and "do as thou wilt" — the voice of Satan. It is the voice that tells you, "that's alright", and consoles you when you fail your duties. It is the voice that encourages dissipation and revolt from what you know is right. It seduced Eve to send mankind into eternal slavery on this earth. Its modern listeners care not about rising to a higher state — they are too focused on video games, pornography, endless scrolling, and Netflix to realize they are failing themselves.
The ancient Greeks and Romans thought that this voice calling us upwards was an abstract principle — not materially tangible, but Platonically real. By reaching such a True, Good, Beautiful, and Strong state we will exercise those virtues and thus rejoice in their exercise. Thus we keep in mind exemplars of these principles and use their example to encourage us to rise upwards. When we are lazy and whining, we bring to mind the steadfast Spartans in their defense against the hordes upon hordes upon Persians; when we become fat and soft, we bring to mind the great Grecian statues with supple and hard bodies, calling us to rise to our potential; when we absorb ourselves in the stupid pursuit of ever-more money, we bring our minds to the barrel-living Diogenes, mocking the endless nature of worldly goods.
We rise to abstract principles through specific examples. The word "strength" does not inspire anyone in its abstract and lifeless state; but Michaelangelo's David calls us to the strength of our ancestors. When we lift weights and feel the immense challenge of one more repetition, we picture the eternal effort of Sisyphus, the herculean strength of the Spartans, the Stoic Vikings endlessly exploring and conquering across frigid seas, the conquistadors adventuring into unknown lands and toppling an empire — all of these examples of manly strength and courage fill our minds and hearts and thus encourage us to rise upwards towards them.
But Christianity takes this a step further. All example that one can rise up to is to be found in Christ's life. Instead of that love for the abstract principles of honor, duty, and strength mentioned above, we have a personal love for Christ. By love, I mean that image-devotion of ourselves in times of weakness; that adherence to the personal example through complete rising-out-of-self into the object of our love. Christ is the object of that love; through the inspiration He inculcates in us we feel our hearts driven to rise up to Him.
So when we feel the temptation of the loins, that temptation to retardedly masturbate to a fake image that will drain us of energy and purity in the future — when this occurs, we bring to mind the image of Christ wading through the lands of the Devil, tempted in all places, and overcoming that evil seduction. When we are put in a tough situation, seemingly hopeless and making us un-agents, we bring to mind Christ's saying, "the kingdom of God is within you", meaning that through our choices we rise or fall. Through our response to the given situation we make ourselves like the self-sufficient, never needy God of ours or like the eternally shaking demons.
Christ is the form of God. He is the specific example that provides all the principles that the lifeless abstractions of "perfectly Good, perfectly Just, all-eternal", etc. cannot bring. Only through Christ can we reach that emotional connection to God — to that Being above us, saying, "rise up to me through Christ!". Christ is the Way, the Path, the great Example that leads us to God. Through His example and His conquering of death, we are saved.
This world is a great battlefield, with Evil increasing its territory day by day. How can one find the inspiration to be strong, beautiful, good, and just without Christ? Why would it matter to be those things without the example of Christ and His great promise of salvation? Where we live now is a testing ground, a sieve that separates the wheat from the chaff. Each day we make the choice to rise up to that God-implanted conscience within us, or to ignore it until it withers like a neglected plant. Reading about macro-political happenings does not change you, nor does endless whining about the state of today. One must accept the evil world as a premise. Despite that lowly premise, we must say, "So be it! Through my choices in response to this world, I rise or fall; through them, I imitate Christ or fall to the wicked state of anxiety, depression, and degeneracy. Each day I make this choice. Today, God help me, I make the right one!"