God is beyond all our concepts. The reason why we use icons in the church is so that we are reminded that no picture, no view of God, no concept of God will ever be sufficient to describe him. They remind us that we are finite and God is infinite. This is the heart of Orthodox theology. This is what prompts us to say that God is a mystery. Mor Ephrem the Syrian puts it in the following way:
Give me Lord that of the two [silence and speech], I make use of with discernment
Let me not debate presumptuously, nor remain silent rashly
Teach a helpful speech, that I may gain silence of discernment.[1]
He puts it differently in another hymn:
Who is not amazed, Lord, that you are the Creator of all creatures
Humans want to inquire into you and they do not even know what their souls are.[2]
There is a gap between God and us. If God is God then he is beyond us. Ephrem the Syrian looks into the human heart and realizes that we don’t even comprehend ourselves fully and completely, so how can we ever talk about inquiring into the One who is beyond everything? Ephrem does suggest that we can speak analogously about God. That is, our language about God does have meaning but it does not capture the essence of God only what he has revealed to us through Revelation (in nature and in Scripture and in the Church).
So how do we relate to God now that we know that God is beyond? By prayer. Ephrem’s hymns were used and still are used in the liturgy of the church. They help us relating to God. They help us put words on our desires, on our hunger for him, our search for him. By prayer, we communicate, in our way with the One who communicates himself constantly to us in our daily lives. Jesus himself is the greatest teacher. He spent hours in prayer, he spent hours in silence and solitude where he could spend time with his Abba, Father. From his prayer he came back refreshed, inspired and ready to continue with the heavy ministry that he was carrying out. Jesus he prayed, not for himself only but for his followers and those who did not yet follow him that they may encounter him and be led to freedom and truth. We are included in his prayers to his Father, he chooses and calls each and every one of us, in his prayers, to be something great; so potentially great that you would be tempted to worship that person if you saw him or her.[3] In the Orthodox Tradition this is called theosis in Greek which means that we can participate in the divine nature. Athanasius of Alexandria said that “God became man so that we can become gods.” This is the what Lewis is talking about and this is what God is calling us to be, holy, sanctified, free, awesome.
[1] Ephrem the Syrian’s 1st hymn on Faith. Stanza 19
[2] Ephrem the Syrian’s 3rd hymn on Faith. Stanza 14
[3] Compare C.S Lewis Weight of Glory. Especially the end.