It is said that each of the seven chakras has a sound that resonates with them.
Resonating the sound of the chakra into the body has the same effect as meditation
It resonates with the divine being within oneself and all energy outside the body.
The sound of the frequency of the seven chakras is output.
It also has a healing effect and cleansing power,
The chakra will be purified if you say it out loud in time with the sound.