The Boston Marathon is Massachusetts’ annual holiday of helping, and it’s that willingness to help, I’ve decided, that chokes me up every year. All of us, deep down, have the urge to help others: to feel like we have made a difference. Cheering on a marathon runner—especially the ordinary folks at the back of the pack who need encouragement—makes you feel like you’re somehow contributing. Maybe someone is beginning to tire or cramp; maybe someone’s inner enemy is saying “Quit” or “I can’t.” When you cheer on a marathon runner—when you hold out a cup of water, an orange slice, or a freezer pop, or when you wave your sign or hit your drum or hold out your hand for a high five—you’re holding out hope that we, collectively, can somehow help a stranger. Maybe at a particular moment of need, you can offer exactly what’s needed: the right words, or a heartfelt bit of encouragement.