A mantra is a sound, syllable, word, or group of words that is considered capable of "creating transformation" (cf. spiritual transformation). Its use and type varies according to the school and philosophy associated with the mantra.

Mantras (Devanāgarī मन्त्र) originated in the Vedic tradition of India, becoming an essential part of the Hindu tradition and a customary practice within Buddhism, Sikhism, and Jainism.

In the context of the Vedas, the term mantra refers to the entire portion which contains the texts called Rig, Yajur or Sama, that is, the metrical part as opposed to the prose Brahmana commentary. With the transition from ritualistic Vedic traditions to mystical and egalitarian Hindu schools of Yoga, Vedanta, Tantra and Bhakti, the orthodox attitude of the elite nature of mantra knowledge gave way to spiritual interpretations of mantras as a translation of the human will or desire into a form of action.

For the authors of the Hindu scriptures of the Upanishads, the syllable Om, itself constituting a mantra, represents Brahman, the godhead, as well as the whole of creation. Kūkai suggests that all sounds are the voice of the Dharmakaya Buddha — i.e. as in Hindu Upanishadic and Yogic thought, these sounds are manifestations of ultimate reality, in the sense of sound symbolism postulating that the vocal sounds of the mantra have inherent meaning independent of the understanding of the person uttering them.

Nevertheless, such understanding of what a mantra may symbolize or how it may function differs throughout the various traditions and also depends on the context in which it is written or sounded. In some instances there are multiple layers of symbolism associated with each sound, many of which are specific to particular schools of thought. For an example of such see the syllable: Om which is central to both Hindu and Buddhist traditions.

While Hindu tantra eventually came to see the letters as well as the sounds as representatives of the divine, the shift toward writing occurred when Buddhism traveled to China. Although China lacked a unifying, ecclesiastic language like Sanskrit, China achieved its cultural unity through a written language with characters that were flexible in pronunciation but more precise in meaning. The Chinese prized written language much more highly than did the Indian Buddhist missionaries, and the writing of mantras became a spiritual practice in its own right. So that whereas Brahmins had been very strict on correct pronunciation, the Chinese, and indeed other Far-Eastern Buddhists were less concerned with this than correctly writing something down. The practice of writing mantras, and copying texts as a spiritual practice, became very refined in Japan, and the writing in the Siddham script in which the Sanskrit of many Buddhist Sutras were written is only really seen in Japan nowadays. However, written mantra-repetition in Hindu practices, with Sanskrit in any number of scripts, is well-known to many sects in India as well.

Khanna (2003: p. 21) links mantras and yantras to thoughtforms:

Mantras, the Sanskrit syllables inscribed on yantras, are essentially 'thought forms' representing divinities or cosmic powers, which exert their influence by means of sound-vibrations.

Read more about Mantra:  Etymology, Mantra in Hinduism, Mantra in Buddhism, Mantra in Sikhism, Mantra in Taoism

Other articles related to "mantra, mantras":

Mahamrityunjaya Mantra - Mantra Text
... The Mahamrityunjaya Mantra reads In Devanagari ॐ त्र्यम्बकम् यजामहे सुगन्धिम् पुष्टिवर्धनम् । उर्वारुकमिव बन्धनान् मृत्योर्मुक्षीय माम्रतात् ।। In (IAST transliteration) Om tryambakaṃ yajāmahe sugandhiṃ puṣṭi-vardhanam urvārukam iva bandhanān mṛtyormukṣīya māmṛtāt In some Hindu Religious books the complete mantra has been mentioned as-. ...
Mantra in Taoism
... There are mantras in Taoism such as the words in Dafan yinyu wuliang yin (大梵隱語無量音) and the Tibetan Buddhism mantra om (唵) ... There are mantras in Cheondoism, Daesun Jinrihoe, Jeung San Do and Onmyōdō ...
Swaminarayan Mantra
... The Swaminarayan Mantra is the main mantra of the Swaminarayan faith ... by adherents of the faith when praying, classifying it as a mantra ...
Shri Vidya
... The first mantra initiated in Srividhya is the Bala Tripurasundari mantra ... The next level mantra is the Panchadasi or panchadasakshari mantra which is a 15 lettered mantra ... The higher mantra is the Shodasi or shodashakshari mantra which is a 16 lettered mantra.Though many Sri Vidya mantras are available in print, they are often considered more ...
Saracen Cycles - List of Current Bikes (2013)
... Mantra Mantra Pro Mantra Trail Mantra Expert Mantra Elite. ...