For arousing compassion, the nineteenth-century yogi Patrul Rinpoche suggested imagining beings in torment — an animal about to be slaughtered, a person awaiting execution. To make it more immediate, he recommended imagining ourselves in their place. Particularly painful is his image of a mother with no arms watching as a raging river sweeps her child away. To contact the suffering of another being fully and directly is as painful as being in that woman's shoes.

Pema Chodron, The Places That Scare You