According to Osho, Zen monks are “moonstruck” because enlightenment is like a full moon shining within; touched by that inner moon, they appear joyously mad to the world—gibberish first, then a vast silence. Their sacred “lunacy” breaks the mind’s grammar so the fragrance of being—peace, bliss, deathlessness—can descend. To be moonstruck is to carry this inner moon’s silence into every moment.
Zen monks look a bit crazy because they’re in love with the bright moon of awareness inside, which makes them playful first and very quiet after.