From the Secrets of Shiva by Devdutt Pattnaik

Fear of death leads to two kinds of fears as it transforms all living creatures either into predator or prey. The fear of scarcity haunts the predator as it hunts for food; the fear of predation haunts the prey as it avoids being hunted.

Nature has no favorites. Both the lion and the deer have to run in order to survive.

The lion runs to catch its prey and the deer runs to escape its predator. The deer may be a prey to the lion, but it is predator to the grass. Thus no one in nature is a mere victim.

Without realizing it every victim is a victimiser, and there is no escape from this cycle of life.