Mantra is a Sanskrit word consisting of the root man manas or mind and the suffix tra meaning tool hence a literal translation would be mind tool. Mantras interpreted to be effective as sound (vibration) to the effect that great emphasis is put on correct pronunciation (resulting in an early development of a science phonetics in India). They are intended to deliver the mind from illusion and material inclinations. Chanting is the process of repeating a mantra. Shani is one of the Navagraha which are the nine primary celestial beings in Hindu astrology (that is Vedic astrology). Shani is embodied in the planet Saturn. Shani is the Lord of Saturday the word Shani also denotes the seventh day of Saturday in most Indian Languages. The origin of word Shani comes from the following: Shanaye Kramati Sa: i.e. the one who moves slowly. Saturn takes about 30years to revolve around the Sun thus it moves slowly enough compared to other planets thus the Sanskrit name Shani.