Think of any scene of disaster and you'll find Sikh volunteers rallying to the site, feeding migrant workers, helping riot victims and cleaning up after earthquakes and floods. Why has this 25-million-strong community become the world's Good Samaritans? What is it about their values that makes so many of them do so much good? And how is it that they're also able to channel so much joy and laughter while serving langar to people from all backgrounds? Through science-based studies, interviews with Sikhs and using Sikhism's history and fables, Sikh journalist Jasreen Mayal Khanna unlocks eight rules for daily life.