“According to Zen legend, when a visitor asked the fifteenth-century master Ikkyu to write down a maxim of “the highest wisdom,” Ikkyu wrote one word: “Attention.” The visitor asked, irritably, “Is that all?” This time, Ikkyu wrote two words: “Attention. Attention.” AttentionZen Book:Rational Mysticism: Spirituality Meets Science in the Search for Enlightenment Source: Rational Mysticism: Spirituality Meets Science in the Search for Enlightenment