Whether your left eye twitches in superstition or science, this guide shows how to interpret the phenomenon through both cultural beliefs and a medical lens. In spiritual traditions, a twitching left eyelid may signal good fortune or divine warning—but medically it’s often benign eyelid myokymia, caused by stress, fatigue, or caffeine. Learn how to reduce triggers, when to consult a doctor, and how to use your intuition safely. Move beyond fear and myth with understanding and peace of mind.