Simply explained, mantras are Sanskrit words, sounds and phrases which are constantly repeated fairly vocally in meditative circumstances, as the mind concentrates on the essence of the words. The vibrations created by these sounds are said to be able to help the individual experience the oneness of both body and mind with the surrounding , thus leaving a positively refreshed feeling of purification.
These chanting sessions are done in quite an intentional state of mind using set or specifically chosen words to invoke different and often varying mindset and expectations. Used throughout the centuries, many believe it to be linked to sacred powers which changes according to the words being chanted. The spiritual progression transcending from a higher state of consciousness actually releases some healing powers to effectively heal the physical and energetic matters within the human body.