People who have not been in Narnia sometimes think that a thing cannot be good and terrible at the same time. If the children had ever thought so, they were cured of it now. For when they tried to look at Aslan's face they just caught a glimpse of the golden mane and the great, royal, solemn, overwhelming eyes; and then they found they couldn't look at him and went all trembly.
-- Narration (Chapter 12 paragraph p. 103)

Importance: This quote portrays the experience of the children the first time they meet Aslan, the description suggesting, within the novel's overall thematic context, that the first encounter with the powerful combination of joy and strength would, and perhaps should, feel the same way.

The coats were rather too big for them, so that they came down to their heels and looked more like royal robes than coats when they had put them on.
-- Narration (Chapter 6 paragraph 44)

Importance: In the comment about "royal...