To be a character who feels a deep emotion one must go into the memory's vault and mix in a sad memory from one's own life.
The sound of laughter is like the vaulted dome of a temple of happiness.
The Romans were not inventors of the supporting arch but its extended use in vaults and intersecting barrel shapes and domes is theirs.
Literature adds to reality it does not simply describe it. It enriches the necessary competencies that daily life requires and provides and in this respect it irrigates the deserts that our lives have already become.