By Meg Hunter-Kilmer, Aleteia - A fiery character trained in virtue can bring about great things for Christ's kingdom. Though anger can easily become a passion that consumes us, it is not inherently evil. As the Catechism explains, “The passions are natural components of the human psyche.” Indeed, St. Thomas Aquinas said, “Lack of the passion of anger is also a vice,” and quoted a document often attributed to St. John Chrysostom that said, “He sins who does not become angry when he has cause.” There is certainly much to be justly angry about in our world, and Christians must respond to evil and injustice with a holy anger that spurs us on to prayer and action.