man·tra /ˈmɑntrə ||ˈmæn ||ˈmʌn-/
  Man·tra n.  A prayer; an invocation; a religious formula; a charm. [India]
  Note: ☞ Among the Hindoos each caste and tribe has a mantra peculiar to itself; as, the mantra of the Brahmans.
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  mantra
       n 1: a commonly repeated word or phrase; "she repeated `So
            pleased with how its going' at intervals like a mantra"
       2: (Sanskrit) literally a `sacred utterance' in Vedism; one of
          a collection of orally transmitted poetic hymns