Karuna is a Sanskrit word and is used in Hinduism, Buddhism and Zen. It is translated to mean any action that is taken to diminish the suffering others and can be translated as "Compassionate action".
Karuna Reiki evolved out of the Usui Reiki and Tibetan Reiki from a desire and a knowingness that there is always something greater waiting to be uncovered. The love of the Creator is unbounded and because of this, there is no limit to the good that can come to those who seek. No matter how wonderful something is, there can always be more. So it was out of this understanding that Karuna Reiki began to manifest here on Earth.
It was found that in order for one to gain the full benefit of Karuna Reiki one must be ready, this can only happen if one's energy system has first been conditioned through the use of Reiki Master energies.
Karuna Reiki has a close relationship with Quan Yin.