At the beginning of Chapter 12 of The Giver, Jonas dreams about the experience he was given the day before: the exhilarating experience of riding on a sled as it speeds downhill with the snow spurting upon him as a wind blows.
In the previous chapter, Jonas meets the Giver for the first time as he begins his life assignment. When the old man tells Jonas that he feels weighed down as though he were on a sled that is slowed by accumulating the winter snow against which he must push, Jonas expresses his ignorance of snow. So, the Giver imparts to Jonas the sensations of going down a hill on the snow, the feel of the cold air, and the spraying snow.
That night as Jonas sleeps, he has a dream that repeats these sensations. In addition, Jonas has the feeling in his dream that there is a destination that lies beyond the spot where the heavier snow slows the sled down. When he awakens, Jonas feels a desire to reach this something that is in the distance. This feeling of Jonas foreshadows what will occur in the latter part of the novel.