The action of Schaffer dismissing the sighting of smoke caused the fire to grow, for he did not bother to alert anyone else. Neither did he try to do something about the fire.
Nirvana is a place of perfect peace and happiness, like heaven. In Hinduism and Buddhism, nirvana is the highest state that someone can attain, a state of enlightenment, meaning a person's individual desires and suffering go away. This belief emphasizes meditation and how much it helps achieve this state.