A story which is too serious tends to be too heavy. That
which is too light tends toward frivolity. An enjoyable work will juxtapose the
two, carefully weighing one against the other until all is in equilibrium.
Characters must have moments of joy, in order to appreciate
the loss when they are suffering. If all is misery, there is nothing to fight
for. Such an existence is subsistence and nothing more.
Readers hope the best for the characters they love. They will
watch that person descend into darkness, but wish fervently they be not consumed.
As events conspire to drive a character to madness, the literary spectator
cheers them on to overcome and retain their mental faculties.
Moments of levity inevitably sharpen the eventual times of
despair. If you like that person, you will laugh with them and weep for them.
And the more contact you have, the deeper your enjoyment will be.
Even the individuals that are not likable can be understood.
And thus, it behooves the author not to drown their reader with too much
emotional turmoil. You must keep the pressure up, without crushing the enthusiasm.
For it is through excitement and
enticement that a reader can be happily drawn into a literary trap.