Next I saw the most lucid air, in which I heard in a marvelous way many kinds of musicians praising the joys of the heavenly citizens. ... And their sound was like the voice of a multitude, making music in harmony.
~ Hildegard of Bingen
Compassion literally means to feel with, to suffer with. Everyone is capable of compassion, and yet everyone tends to avoid it because it's uncomfortable. And the avoidance produces psychic numbing -- resistance to experiencing our pain for the world and other beings.