What metaphors are used in Looking for Alaska by John Green?

In Part Two, Miles is woken up by three guys who take him down to the lake, wrap him in duct tape, and throw him in, leaving him to make his own way back to shore. This experience can be seen as literally foreshadowing ongoing conflict, throughout the narrative, between the two groups of students, and also as metaphorically foreshadowing his feeling bound and trapped by his loving grief after Alaska's death in the latter part of the book