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.
"First, my child," said Old Turtle, "remember that there are truths all around us, and within us. They twinkle in the night sky and bloom upon the earth. They fall upon us every day, silent as the snow and gentle as the rain. The people, clutching their one truth, forget that it is a part of all the small and lovely truths of life."