It is hard, you have to have an Idea or Image in your head. For example, a battlefield.
A garden of bodies, each cut up and stuck into arrows, lay undisturbed after the dust settled. Small streams of blood of both ally and enemy flow as a reminder of a cruel truth. Black shadows began to fly around as the corpses of the recent battle began to be picked. Cloaked figures start to defile the dead as greed or revenge motivate their dark acts.
A single wolf howls as the sound of metal clashing and horrible death screams faded. Where two armies once stood and fought, now lies the fallen corpses as those who survived began to gather. Several figures with hidden daggers began to defile the corpses for greed while others either of revenge or keeping their words do the same. Above dark shadows circle over ahead as the grim reminder of a vile truth.