Mantra is a tool to focus meditation. Mantra yoga is the use of a phrase or a sound in the practice and its use protects the person who is using it! Traditionally, Mantra is passed from teacher to student when the teacher clearly sees what the student needs. In a moment of revelation, the teacher knows exactly which mantra to provide. The student receives the mantra and repeats it over and over in meditation. Its use creates a shield and protects the user whenever protection is needed.