I fed you with milk, not solid food,
for you were not ready for it.
(1 Corinthians 3:2)
Aslan reveals to Lucy and Edmund that he is known in our world: "But there I have another name. You must learn to know me by that name. This was the very reason why you were brought to Narnia, that by knowing me here for a little, you may know me better there" (The Voyage of the Dawn Treader 247).