Humming the Bloodsong on the Heartstring

Jeanne Achterberg's Woman as Healer

Shamans are capable of pearl diving in the collective unconscious and discerning the information writ in their own entrails and bones, the knack of humming the bloodsong on the heartstring...The shaman, like Plato's philosopher, has found the Sun Door and gone outside the cave, has burrowed into the depths of the cave and found that door, too. His (her) job is to bring back images for healing of the soul. (198)