以い心しん伝でん心しん

noun, noun which may take the genitive case particle 'no'

telepathy; tacit understanding; heart-to-heart communication

Used when people understand each other without words, often in close relationships or teamwork. Can be used as a noun or with の to modify another noun.

• 長なが年ねん連つれ添そった夫ふう婦ふには以い心しん伝でん心しんのやりとりがある。

  A couple who have been together for many years have a tacit understanding in their interactions.

• 彼かれとは以い心しん伝でん心しんで、言こと葉ばにしなくても考かんがえていることがわかる。

  With him, it's like telepathy—I know what he's thinking without him saying a word.

noun

non-verbal transmission of Buddhist teachings

Buddhist term referring to the direct, wordless transmission of enlightenment from master to disciple, especially in Zen. Rare outside religious contexts.

• 禅ぜん宗しゅうでは、以い心しん伝でん心しんが重じゅう視しされる。

  In Zen Buddhism, non-verbal transmission of the teachings is emphasized.