Ra likens karma to inertia: those actions which are put into motion will continue using the ways of balancing until such time as the controlling or higher principle, which may likened unto braking or stopping, is invoked. This stoppage of the inertia of action may be called forgiveness. These two concepts are inseparable. In forgiveness lies the stoppage of the wheel of action, or what you call karma. Actions undertaken in a consciously unloving manner with other beings are those which may generate karma.