(いしんでんしん)

いしんでんしん
noun, expression
tacit understanding, telepathy
1. tacit understanding, heart-to-heart communication
Understanding each other without words; communicating through unspoken feelings. A Buddhist-origin four-character idiom.
夫婦(ふうふ)以心伝心(いしんでんしん)
That couple really understands each other without speaking.
以心伝心(いしんでんしん)(かれ)気持(きも)わかった
I understood his feelings without him saying anything.
With long-time friends, we can communicate without words.

以心伝心(いしんでんしん) is a four-character idiom (四字熟語(よじじゅくご)) meaning tacit understanding or heart-to-heart communication.

LITERAL MEANING:
() (by means of) + (しん) (mind) + (でん) (transmit) + (しん) (mind) = 'transmitting mind with mind'

ORIGIN:
Originally a Zen Buddhist term for the transmission of enlightenment from master to disciple beyond words and scriptures.

MODERN USAGE:
Describes intuitive understanding between people who know each other well - couples, close friends, long-time colleagues.

COMMON PATTERNS:

RELATED: