Official Mantra List in the Practice of Meditation
Before listing the most famous mantras used in meditation, let's talk about the possible "phonetic" reasons for their blissful effects on the mind...
Take, for example, the pair of odd shapes above. If asked which shape is called "bouba," and which is "kiki," 98% of people say the blob is "bouba" and the other is "kiki." The reason appears inherent in the shapes: the blob is softer and rounder, the other shape (kiki) is harder and sharper. Bouba is spoken in soft tones, while kiki is spoken in hard tones. One is calm, one is manic.
Shapes and sounds merge together in certain forms of synesthesia, a condition in which people experience incredible sense-blending. The question arises: Are the general effects of synesthesia unique only to them?
Apparently, that's not the case, according to Bouba and Kiki.
Shapes and sounds merge in all of us, to some degree. Sounds and moods can be merged in the practice of meditation. The mantras used in mantric meditation merge the most common mantra "sounds" into calming moods. Most meditation mantras brim with the "soft" consonants — like n or l — free of the more "cutting" sounds like k and t. Internal sounds merge into "emotional" shapes.
For example, words like love and fun are smoother in diction — and calmer in their psychological effect — than words like kill and hate.
Mantras consist of repetitious chanting, or internal mental repetition, whose "sound" preference could be a result of the brain's intrinsic predisposition. If you scan through the mantra lists in detail (do a google search for additional mantras), you can see for yourself...
A list of popular mantras...
aum (pronounced om or oom)
Aum Namah Shivaya
Aum Namo Narayanaya
Aum Shri Ganeshaya Namah
Aum Kalikayai Namah
Namo Loe Savva Sahûnam
Om Namo Narayanaya
Om Namo Bhagavate Vasudevaya
Om Sri Ram Jai Ram Jai Jai Ram
Tat Twam Asi
Aham Brahma Asmi
A list from Transcendental Meditation:
Like Bouba herself, the mantras appear round and smooth on the lips and tongue, helping to induce peaceful states of mind. Mental recitation of a mantra offers the same emotional resonance as the spoken pronunciation, regardless of the language. In other words: Sound, shape, and mood seem to intersect in certain areas of the brain, appearing to resemble the cross-stitching effects found in synesthesia.
More information on bouba and kiki can be found in: V.S. Ramachandran (2001). Synaesthesia -- A window into perception, thought and language Journal of Consciousness Studies Link to abstract