Past tense of commune: shared one's intimate thoughts and feelings, or participated in a shared spiritual experience.
From Old French 'comun' (common) with the sense of sharing thoughts developing in Middle English. The spiritual sense emerged in religious contexts.
Thoreau wrote about 'communing with nature'—this verb carries an almost spiritual weight that 'talking' or 'chatting' doesn't have, suggesting something deeper and more meaningful than ordinary conversation.
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