Karuna is a Sanskrit word and is used in Hinduism and Buddhism. It is translated to mean compassionate action.
Karuna is the motivating quality of all enlightened beings who are working to end suffering on Earth. They continually send an unlimited amount of healing energy and guidance to us, but not all are receptive to it. As you develop Karuna in yourself, not only are you helping others, but you also become more receptive to the Karuna that is being sent by all enlightened beings. Thus your healing is quickened as well.