When [Jesus] preached, “If anyone strikes you on the cheek, offer him the other also,” (Luke 6:29), [he] wasn’t preaching masochism or martyrdom. He was speaking of a quality of consciousness that is know in Sanskrit as Ahimsa. The word is usually translated as “harmlessness” or “nonviolence,” and in modern times it became the watchword of Gandhi’s movement of peaceful resistance. Gandhi himself was often seen as Christlike, but Ahimsa has roots in India going back thousands of years.
In the Indian tradition, several things are understood about nonviolence, and all of them apply to Jesus’ version of turning the other cheek. First, the aim of nonviolence is ultimately to bring peace to yourself, to quell your own violence; the enemy outside serves only to mirror the enemy within. Second, your ability to be nonviolent depends on a shift in consciousness. Last, if you are successful in changing yourself, reality will mirror the change back to you.
Without these conditions, Ahimsa isn’t spiritual or even effective. If someone full of desire for retaliation turns the other cheek to someone equally enraged, the only thing that will occur is more violence. Playing the part of a saint won’t make a difference. But if a person in God-consciousness turns the other cheek, his enemy will be disarmed.
~Deepak Chopra, The Third Jesus