The Dark Tower (The Dark Tower, #7)

by Stephen King

Nerves, he thought, were for people who still hadn’t entirely made up their minds.

if there was only darkness on the other side of existence (as she had for most of her adult life believed), then nothing was lost,

I got a theory—the folks who end up living the lives they expected are more often than not the ones who end up takin sleepin pills or stickin the barrel of a gun in their mouths and pullin the trigger.”