In The Giver, we see examples of both physical and emotional suffering. Both types are memories of a distant past since, in this futuristic world, neither exists any longer. The novel argues that suffering, while horrible and painful, is an integral part of the human experience. Without it, we can't hope to learn from the past and make informed decisions to better the future.
The Giver argues that suffering must be dealt with in isolation.
The Giver argues that the only way to cope with suffering is by sharing the burden with others.