Whereas a Newton´s Cradle in usage as a executive toy may stand as a symbol for reaction, impulse or success, this one reflects on opposite models: weariness, futility and vanity.
Sometimes life just seems to swing back and forth. When an action is not causing any effect, it appears worthless. If there is no reaction in some form, be it money, glory or a nice feedback, we start feeling frustrated.
But is this model of achievements and goals still a working one? Why can we not be happy with the oscillating itself, like sitting on a swing or lying in a hammock.