What is the purpose of Mantra during meditation?

Mantra comes from the Word ‘man’ mind, ‘tra’ instrument, therefore, a mantra is an instrument to calm the mind. Just like we use other instruments, like writing instruments, hearing instruments, the mantra is another instrument that is meant to silence the mind. When we repeat a mantra, when we use the power of a mantra, we silence the mind, we reduce the MTR, the Mental Thought Rate, which can normally be upto fifty thousand thoughts a day, fifty thoughts a minute. The repetition of a mantra reduces the MTR. The benefit is peace, bliss, overcoming worry, stress, and anxiety. Therefore, many people use the help of a mantra to meditate.