Mantra: A "mantra is a sacred utterance, a numinous sound, a syllable, word or phonemes, or group of words in Sanskrit believed by practitioners to have psychological and spiritual powers. Mantra meditation helps to induce an altered state of consciousness. A mantra may or may not have a syntactic structure or literal meaning Mantras come in many forms, including ṛc and sāman They are typically melodic, mathematically structured meters, believed to be resonant with numinous qualities. At its simplest, the word ॐ (Aum, Om) serves as a mantra. In more sophisticated forms, mantras are melodic phrases with spiritual interpretations such as a human longing for truth, reality, light, immortality, peace, love, knowledge, and action. Some mantras have no literal meaning, yet are musically uplifting and spiritually meaningful