Monkey mind
Monkey mind or mind monkey, from the Chinese compound xīnyuán and the Sino-Japanese compound shin'en 心猿 [lit. "heart-/mind-monkey"], is a Buddhist term meaning "unsettled; restless; capricious; whimsical; fanciful; inconstant; confused; indecisive; uncontrollable". In addition to Buddhist writings, including Chan or Zen, Consciousness-only, Pure Land, and Shingon, this "mind-monkey" psychological metaphor was adopted in Taoism, Neo-Confucianism, poetry, drama, and literature. "Monkey-mind" occurs in two reversible four-character idioms with yima or iba 意馬 [lit. "thought-/will-horse"], most frequently used in Chinese xinyuanyima 心猿意馬 and Japanese ibashin'en 意馬心猿. The "Monkey King" Sun Wukong in the Journey to the West personifies the monkey mind. Note that much of the following summarizes Carr. "Mind-monkey" 心猿 is an exemplary animal metaphor. Some figures of speech are cross-linguistically common, verging upon linguistic universals; many languages use "monkey" or "ape" words to mean "mimic", for instance, Italian scimmiottare "to mock; to mimic" < scimmia "monkey; ape", Japanese sarumane 猿真似 [lit. "monkey imitation"] "copycat; superficial imitation", and English monkey see, monkey do or to ape). Other animal metaphors have culture-specific meanings; compare English chickenhearted "cowardly; timid'; easily frightened" and Chinese jixin 雞心 [lit. "chicken heart"] "heart-shaped; cordate". The four morphological elements of Chinese xinyuanyima or Japanese shin'en'iba are xin or shin 心 "heart; mind", yi or i 意 "thought", yuan or en 猿 "monkey", and ma or ba 馬 "horse"'. The psychological components of the "mind-monkey will-horse" metaphor are Chinese xin or Sino-Japanese shin or kokoro 心 "heart; mind; feelings, affections; center" and yi or i 意 'thought, idea; opinion, sentiment; will, wish; meaning'. This Chinese character 心 was graphically simplified from an original pictogram of a heart, and 意 "thought; think" is an ideogram combining 心 under yin 音 "sound; tone; voice" denoting "sound in the mind; thought; idea".
