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  What it means

  Literally “to lay on the heart.” Means to weigh heavily on someone’s conscience or mind — to cause a persistent moral burden, guilt, or deep worry. It suggests that something is not merely a passing concern but something that settles on a person and stays there. Often used when describing guilt, unfinished business, or something that troubles a person’s soul.

  Vocabulary

  • kłaść — to lay, to put (imperfective)
  • serce — heart
  • sercu — heart (locative case of serce)

  Grammar note

  The preposition 'na' takes the locative case when indicating location ('on the heart' = 'na sercu'). Here 'sercu' is the locative of 'serce' (neuter noun). The phrase is typically used with a subject doing the laying: 'To kłaść mi się na sercu' = 'This weighs on my heart.'

  Cultural context

  Polish culture places great weight on conscience, duty, and emotional sincerity. This phrase appears in literature, prayers, and intimate conversation. It is emotionally richer than simply saying 'martwię się' (I'm worried) — it implies a deep moral or spiritual burden.

  Intermediate

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