Karmapa released souls from purgatory
Once when Karmapa was 6 years old, while he was taking a walk near Gombu Gyaka Valley where he resided, he playfully inserted his whip handle into a stone. The stone broke and there appeared a lung shaped being with many small white and black sesame like bugs on its body and eating it.
Karmapa spat on it as a blessing, then the being died and its body was cremated.
Karmapa said: " In the past, when I was Playful Vajra (the 4th Karmapa), a local guru who consumed the wealth of the devotees and the dead used to pray to me. Now I have liberated him from the lower realms. Otherwise he will have to fall into the hell. Those white bugs are the karmic result of him using the wealth of the living; and the black bugs are the consequence of him using the wealth from the dead."
via Ocean of Merit FB