The roots of resilience,” the psychologist Diana Fosha writes, “are to be found in the sense of being understood by and existing in the mind and heart of a loving, attuned, and self-possessed other.” In how you see me, I will learn to see myself.

Throughout this chapter I’ve been trying to emphasize how physical emotions are, that becoming more empathetic is not some intellectual enterprise; it is training your body to respond in open and interactive ways. To recover from painful traumas, people need to live through experiences that contradict what happened to them earlier in their lives. Someone who has been abused has to experience intimacy that is safe. Someone who has been abandoned has to experience others who stayed. This is the kind of knowledge and learning that is held at the cellular level. The rational brain is incapable of talking the emotional body out of its own reality, so the body has to experience a different reality

firsthand.

Over time, a person who enjoys a higher vagal tone will begin to see and construct the world differently. I mean this literally, too. As the neuroscientist Lisa Feldman Barrett writes in her book How Emotions Are Made, “You may think that in everyday life, the things you see and hear influence what you feel, but it’s mostly the other way around: What you feel alters your sight and hearing.” People who are scared take in a scene differently. Our ears, for example, immediately adjust to focus on high and low frequencies—a scream or a growl—rather than midrange frequencies, which include normal human speech. Anxiety narrows our attention and diminishes our peripheral vision. A feeling of happiness, by contrast, widens our peripheral vision. A person who feels safe because of the reliable and empathetic presence of others will see the world as a wider, more open, and happier place.

And watch what happens to you. The more deeply you understand other people, the more you will appreciate them, the more reverent you will feel about them. To touch the soul of another human being is to walk on holy ground.

By studying some of the most beautiful examples of people whose latent potential popped into view when they came into frame, I became increasingly attuned to seeing and sensing the encodings and fire of those around me.

Then one day, I woke up to realize that my entire emotional state had changed, not just in my work, but across my entire life. Instead of feeling frustrated with what people are not, I’d made a monumental shift to feeling grateful for what they are. I wish I’d made this shift decades earlier but as the Supreme Court Justice Felix Frankfurter pointed out, “Wisdom too often never comes, and so one ought not to reject it merely because it comes late.