Use deliberate smiling to release tension in your face, your mind, your body — and in everyone around you. — Thich Nhat Hanh was a Buddhist monk, mindfulness teacher, and peace activist. He was also a prolific author, and in his writing, he often emphasized the importance of smiling. Here’s an example from his book Peace is Every Step(1): Mona Lisa’s smile is light, just a hint of a smile…