Nymph is a name taken from the first stage of metamorphosis of a moth or butterfly—the stage at which the larvae becomes a caterpillar. In this stage, the caterpillar is blind and simply surviving.
As humans, we go through similar stages throughout our lives. We're just as cyclical as any other creature or being. When hard times come our way, sometimes we have to go back to stage one—and do what we need to survive—before we can work ourselves into a cocoon or butterfly once again.