When a single blossom opens, the entire universe arises. You are the moment, and when you are the moment, the moment is a hundred thousand eons, and a hundred thousand eons are the moment. Heaven and earth are separated. Good and bad, up and down, self and other - all the dualities appear. This is what Shakyamuni Buddha said at the moment of his own enlightenment.
All beings are perfect and complete, lacking nothing.
That is what he realized. He realized that not only did he attain the Way but that all beings everywhere simultaneously attain the Way. He realized that all beings are by nature Buddha. That is the original perfection that is our starting point. It is what's buried under layer upon layer of conditioning.