Ss. Joachim and Anne
What are the necessary conditions for the possibility of sight? That is, what must be true of me if I am going to be able to see? First, I'll need eyes. Then, an optical nerve. Finally, an occipital lobe with the help of the parietal and temporal lobes in the brain. All of these need to be functional to one degree or another. Then, I'll need something in the world capable of radiating and/or reflecting photons. All of this combined gives me all I need to see. Now, what are the necessary conditions for the possibility of Seeing; that is, what must be true of me if I am going to See – to See in the way the prophets and the righteous long to See? Jesus doesn't give us a detailed explanation for this kind of Seeing. He doesn't lay out the necessary conditions, or list off any minimal criteria. But it's fairly obvious that being a prophet and a being righteous person isn't enough. Being able to glean the will of God in the present moment isn't enough. Being in right relationship with Him under the Law isn't enough. Something more is required. That something more is the reception of grace, taking into oneself the gift of God Himself. Knowing and loving God in the person of Christ Jesus surpasses knowing about Him like a prophet or loving Him like a follower of the Law.
Jesus says that seeing him is to See the Father. Physically seeing Jesus is spiritually Seeing the Father. This is the advantage the disciples have over the prophets and the righteous. Their “seeing” is mediated by either knowledge or the Law. Our “seeing” is mediated by the Incarnated Word, God the Son. They are counted righteous by doing their duty. We are made righteous by receiving the gift of God Himself. In the sacraments, in prayer, in doing righteous deeds; in acts of mercy, love, and forgiveness; in growing in holiness, we take into ourselves the One Who saves. And we become the One Who saves us. Then, we are those who radiate/reflect the light of Christ for others to See. It's not enough that we See. We must also be the condition for the possibility of others Seeing. We must be Seen.